Magnetism, Magnetic Field Force, Right Hand Rule, Ampere's Law, Torque, Solenoid, Physics Problems

[@TheOrganicChemistryTutor]

Final Exams and Video Playlists: www.video-tutor.net/ Full-Length Videos & Worksheets: www.patreon.com/MathScienceTutor/collections

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How would u know if u don't attend the semester?

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@@TohTomajohs because they already attended the 3 weeks, it didn't teach them as much as this 1 hour and therefore they decided it isn't worth it 👍

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[@Kurto.]

4:04 strength of the magnetic field 6:31 simple wire, find magnitude and direction of the field 2cm away 9:14 a wire has 10a current. at what distance will a specific field be produced 11:52 current wire inside a magnetic field 14:48 more but with directions 17:40 a wire carries a current in the presence of a magnetic field. whats the force on the wire 19:45 a current flows west through a wire that experiences a magnetic force, whats the strength of the magnetic field which is directed south 23:05 rectangular loop with clockwise current. only a portion is in a magnetic field . where will it move? 27:15 magnetic force on a single point charge 29:13 example 32:27 a proton moves east at a speed, in a magnetic field. whats the magnitude of the magnetic force acting on the proton 34:59 proton moving to the right in a magnetic field, where is the magnetic force. it turning/going in a circle 38:02 centripical force jazz 39:17 centripical problem 45:27 paralel wires 48:43 magnitude of the force between two wires 50:44 what is the magnitude and direction of the force between two wires that are x distance appart travaeling in the same direction with the same current 53:08 ampears law 55:32 solonoid 1:01:57 a solonoid has a lengt of 15 cm and 800 turns of wire, what is the strength of the magnetic field if the current is 5 1:06:39 some loop thing 1:18:40 torque

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You’re literally one of the best communicators, and have a real gift at explaining concepts, complicated or not, in such an easy to understand manner. You explain it so well, that is almost impossible to not understand it afterwards. I can’t thank you enough for all your indirect help from your videos. Especially allowing us to view them for free is the real kicker. You have a great mind and a big heart to put the time and effort into your playlists. I’m going to school for my BS in mechanical engineering, and you literally helped me get straight As through all the pre req engineering courses, Calc based chem1&2, Calc based Physics1&2, and Calc 1&2. Please keep up the great work!!!! You rock!

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honestly I should be paying this man several thousand a semester over my professors bc he teaches me way more and doesn’t judge me when I don’t understand how to do this lol

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[@keatonwesterkamp8220]

At 5:30, there's an error. The arrow for the distance in magnetic field strength equation should be opposite. I ^ = B ^ R *(down)* = B ^

[@growingsoul30]

Almost didn’t notice this

[@kaimi4675]

I was confused by that😂

[@wongfoo1600]

yea i notice it too make me so confused.

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yes I got so confused

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got my physics exam in about 3 hrs, cramming in as much as possible.

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Congrats, you just explained in 1.5 hrs what my physics teacher couldn't in 3 weeks. i might be able to pass my final now!, thank you.

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did u pass

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@@Antonio-nn8he i did pass! Got a B overall.

[@richphero106]

First 3 mins One of the Right-Hand Rule 15:30 Another Hand Rule 24:27 Hand Rule for a relatively difficult problem (changing direction of force) 31:00 Hand Rule with respect to velocity

[@kabelositwe4428]

Low voice is the only problem, I even used subtitles for better clarity. ABOVE ALL, I THANK YOU MISTER.

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[@troypie7020]

This video discusses magnetism, magnetic fields, Ampere's Law, torque, solenoids, and physics problems. It explains the relationship between current and magnetic fields, the right hand rule, and how to calculate magnetic forces and torques in various scenarios. The video also covers the concept of magnetic dipole moments and the calculation of magnetic fields in solenoids. Key moments: 00:01 Magnetism involves attraction and repulsion between poles. Magnetic fields are created by moving electric charges, illustrated by the right-hand rule. -Illustration of magnetic field using the right-hand rule. The direction of the magnetic field around a wire can be determined by the direction of current flow and the curl of fingers around the wire. -Calculation of magnetic field strength. The equation B = u0 * i / 2πr is used to calculate the strength of the magnetic field created by a wire, where u0 is the permeability of free space. -Relationship between current and magnetic field strength. Increasing current increases the magnetic field strength due to direct proportionality. Decreasing distance weakens the magnetic field due to inverse proportionality. 08:03 Calculating the distance from a wire for a magnetic field strength involves using the equation involving current, magnetic field strength, and constants. Understanding the relationship between current, magnetic field, and magnetic force is crucial in physics. -Converting distance units from centimeters to meters is essential in physics calculations. One meter is equivalent to 100 centimeters. -The calculation of magnetic force involves the current, length of the wire, and the angle between the current and magnetic field. Increasing current or magnetic field strength results in a higher magnetic force. -The right-hand rule is used to determine the direction of the magnetic force acting on a current-carrying wire in a magnetic field. The force is perpendicular to both the current and the magnetic field. 16:07 Understanding the right-hand rule helps determine the direction of the magnetic force on a current-carrying wire. The magnitude of the magnetic force can be calculated using the formula F = ILB. -Using the right-hand rule to determine the direction of the magnetic force based on the orientation of the current and magnetic field. -Calculating the magnitude of the magnetic force on a wire using the formula F = ILB. 24:10 Understanding the right-hand rule is crucial for determining the direction of magnetic force. Magnetic force on a moving charge can be calculated using the equation F = Bqv sin(theta). -Right-hand rule helps determine the direction of magnetic force. Thumb points in the direction of current, fingers show magnetic field direction. -Equation F = Bqv sin(theta) calculates magnetic force on a moving charge. Current, charge, velocity, and angle are key factors in the equation. -Magnetic force direction depends on the orientation of charge and magnetic field. Use the right-hand rule to determine the force's direction. -For negatively charged particles, magnetic force direction is opposite to that of positively charged particles. Reverse the direction for negative charges. 32:15 A proton moving in a magnetic field perpendicular to its velocity will follow a circular path due to perpendicular forces. The radius of this path can be calculated using the equation r = mv / Bq. -Perpendicular forces cause a moving proton to follow a circular path in a magnetic field. The magnetic force acts as a centripetal force. -Electrons moving in a magnetic field experience a force opposite to protons, leading to circular motion in the opposite direction. The radius of the circular path can be calculated using the equation r = mv / Bq. 40:18 Calculating the radius of a proton's path involves using the speed, magnetic field strength, and charge. The energy of a proton in electron volts can be found by converting its kinetic energy. Wires with currents in the same direction attract each other due to magnetic forces. -Calculating the radius involves speed, magnetic field strength, and charge of a proton. The radius is found to be 2.09 centimeters. -Converting the proton's kinetic energy to electron volts gives 130,703 eV. The process involves understanding the relationship between joules and electron volts. -Electric potential is explained as energy per unit charge, with 1 volt equaling 1 joule per coulomb. The charge of an electron and its energy in electron volts are discussed. -Wires with currents in the same direction attract due to magnetic forces. The right hand rules are used to determine the direction of magnetic fields and forces between wires. 48:22 Understanding the force between parallel wires with current in the same direction, calculating the force magnitude, and applying Ampere's law for magnetic fields are essential concepts in electromagnetism. -Calculation of the force between two parallel wires with current in the same direction involves using the formula F = μ0 * I1 * I2 * L / 2π * R. -Ampere's law describes the relationship between current and magnetic fields, stating that the sum of magnetic fields around a closed path is equal to μ0 times the current enclosed by the path. -Solenoids, consisting of multiple wire loops, create strong magnetic fields at the center due to the cumulative effect of current loops, making them useful for generating powerful magnetic fields. 56:46 The strength of the magnetic field in a solenoid is directly proportional to the current passing through it and the number of turns per unit length, while inversely proportional to its length. -Increasing current or the number of turns per unit length in a solenoid enhances the strength of the magnetic field. -Decreasing the length of a solenoid also increases the strength of the magnetic field. 1:04:33 A current-carrying loop experiences torque in a magnetic field due to the force exerted on its sides. The torque formula is T = nIABsin(theta), where n is the number of loops, I is the current, A is the area, B is the magnetic field strength, and theta is the angle between the field and the normal line. -The torque on a current-carrying loop is due to the force exerted on its sides by the magnetic field. The force is perpendicular to both the current and the magnetic field, resulting in a torque that causes the loop to turn. -The torque formula for a single loop is T = nIABsin(theta), where n is the number of loops, I is the current, A is the area of the loop, B is the magnetic field strength, and theta is the angle between the field and the normal line. 1:12:56 Torque on a coil is greatest at 90 degrees between the magnetic field and the normal line of the coil, resulting in rotation. At 0 degrees, there is no torque due to parallel forces. -Explanation of torque at different angles. -Illustration of equilibrium at 0 degrees. 1:20:43 To find the maximum torque in a magnetic field, multiply the number of loops, current, area, and sine of 90 degrees. The magnetic field can be calculated by dividing the product of these values by the torque. -Calculation of maximum torque involves multiplying the number of loops, current, area, and sine of 90 degrees. -Solving for the magnetic field requires dividing the product of loops, current, area by the torque value

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I really like how you take time and build up the difficulty of the problems. Really boosts up my confidence as well as my understanding unlike college lecture which assumes you understand everything and just throws out abstract equations without explaining them.

[@infectedzombieguy]

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You are a great teacher. I attended the Physics classes but I don't understand the lectures at all. Your video is precious for me and it helps a lot to prepare my final exam. Thank you.

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Thank you for being better than my professors! Been watching these as well as your calc 2 videos to either brush up (or full on learn) the content that I need to know for my exams and tests. You've been a lifesaver and make them much easier to understand! Don't stop making the videos you're helping so many people! Just wanted to say thanks!!!!!

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I currently am a junior taking ap physics 1, and I plan on taking ap physics 2 next year. Your videos thoroughly explain this topic in a simplistic yet advanced way that anyone can understand. I plan to watch all your ap physics 2 videos before I take ap physics 2 so I can have a further understanding

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I was reading a book written by an electrician .not easy to understand plus the mistakes that were in it .after listening to yours carefully I understood it well.well explained and clear specially about the n The angle between normal line and direction of magnetic field.thank you so much.love your video.

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Man, magnetism is easy af with your lessons! I couldn't understand a word when I read that on my book. Thanks )

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Thank you so much for your explanation of magnetism. You explain the subject matter way better than my textbook.

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You are the best communicator and teacher I ever got, your way of explanation made me understand even what I failed to understand from my professor in 4 months. Thank you for being there for all of us. You deserve more, God bless you.. ✍️🙏🏼🙏🏼

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[@koober_]

What the fuck does this have to do with magnetism?

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Lol

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themba xulu I

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Kobee R nice

[@avationmusic]

Up until this point I’ve only been using Flemmings Left Hand Motor Rule to determine the direction of force, magnetic field and current. The technique you showed here with the palm of your right hand is so much easier to use and remember. Thank you!

[@spelunkerd]

I thought I understood this pretty well, until I confused myself by looking through the bewildering array of right and left hand rules here on the internet. Your video regrounded my understanding, thank you. Those other rules, with variable assignment of fingers and hands depending on the circumstance, were just too confusing.

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I hope you have a good day as well! Just finished studying for my exam thats about 7 hrs from now. You're the best teacher, my tuition should be going to you

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Great video my friend I really like that you use such simple examples. It makes learning the equations and understanding the relationships between the variables quick and easy.

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This is so helpful. I am only 16 min in and already have 3 pages of notes! Great details here! Bravo, Bravo!

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Thank you hopefully this will help me on physic portion of the MCAT. I definitely feel more confident.

[@sarahhassan4953]

Can I just say, god bless u! You save me in every course and no one explained to me the RHR so clearly as you did. Thank you!

[@upsetmontages]

His notation of current out of page or into the page is incorrect. Current flowing out of the page, meaning towards you the viewer, should be a dot. Current flowing into the page, meaning away from you the viewer, should be an X. I was just confused, figured it might help someone out.

[@aiahnour5542]

I was wondering this too! I thought I had it backwards but glad to see someone else caught it.

[@BlahBlah-zr8ie]

wow the way u explain everything in easy words and like i dont have previous knowledge is so helpful. You can tell u truly understand the concepts.

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Dude. I've been to physics classes watched videos from M.I.T. professors and this video trumps all those guys. Keep it up. Thank you.

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I just took my time to watch and pause the video to calculate on my own, gauze what I scored in my CAT,, woow, thanks so much, I've just come back to thank you, I was really helped.

[@pinco_pallo]

Thank you very much. I'm Italian and I've found this video really helpful and useful because I've learned something about the magnetic field and part of the mathematical English language at the same time. Subscribed. 😃✅

[@TheOrganicChemistryTutor]

No problem

[@pinco_pallo]

Which software to you use to make your videos? :-)

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Thank you so much! I am writing physics in two days, and I already feel confident thanks to you.

[@hagopkalandjian]

shouldn't magnetic field (B) increase as distance from the wire (R) decreases?

[@superkrystal98]

yea i noticed that too

[@hatemblogs2861]

He meant increases, but he drew it as decreases

[@jademath910]

I noticed it too.

[@ahmadalhourani8362]

Yea he meant that

[@neerajsingh4135]

no because the strength looses as distance increase as density of field lines get decreased at a increasing distance

[@crochetqueen940]

You're really the best teacher of physics I've ever learnt from?

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Physics test tmrrow morning. Let's see how it goes hehe.

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thank you very much, sir, now it's been 6 years since this vid was made and yet there is no brief,excellent and understandable video of electromagnetism. you are so talented in a way you can make everyone to understand physics and the vids on chemistry and maths are also awesome . what a blessed mind , thank you.

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You have no idea how much you have helped me! So informative and amazing! :)

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7 years later an you are here helping me with physics ..ooh man you are awesome ❤

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I am a huge fan of your videos! Everything from Organic Chemistry to Physics has been so helpful! A friendly suggestion would be to add timestamps in your description to help your viewers follow along or skip to the part they are most confused about :)

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BLESS YOU SO MUCH. SECOND TIME WATCHING THIS VID IN MY LIFE AND ITS BLESSED ME EACH TIME

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I just love this person ...can someone tell me his name ?? How he looks like ?? I want to see this genius

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I landed on this tutorial when I was sleepy but the sleep disappeared, I am really grateful thanks Tr.

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the sentence that i love most , "we can get rid of it" :)

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just thank you, saved my life

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Talented tutor ever , You deserve an Oscar

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When online physics is taught by a boomer Go to the Organic Chemistry Tutor

[@kmn9568]

@@bjonu fs, just wrote this in good fun when my physics teacher sped up the pace x10000

[@will808080]

We are all just trying to learn what are elders and ancestors discovered. Try not to be too vain guys.

[@kmn9568]

@@will808080 isajoke? Wdym vain i just felt like writing sum funny

[@will808080]

@@kmn9568 The term “Boomer” is used to dismiss the older generation, meaning it is disrespectful. In this case it seems vain because physics formulas and books are written by our predecessors or “boomers”. Just trying to enlighten you since you asked. Enjoy.

[@kmn9568]

@@will808080 we started to use the term boomer because we found it annoying when boomers flexed their boomerness to us about how "back in their day" kinda crap. I don't really need to be enlightened and I will use the term freely. In this case it is a joke I used to make a rhyme and I really don't see a reason why that's not a thing people would be ok with. It's the internet bud , if you weren't only subbed to every science channel you'd literally be spending your life correcting others rhetoric. Friendly advice, no one actually "enjoys" it and you will eventually get murdered with words. Enjoy

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your presentation is fabulous....you. clear my. confusing ....

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I learn more from you than my actual teacher, you literally cover everything I learn in lesson, and I know once I get arch your video I’ll finish knowing that I now understand

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Man wtf i spend two week in class now learning a single thing and it only took one video to teach me everything????

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u saved me.i have gone blank in my zoom and idk what happened.its just 2 days to my phy test now ik what i have to do

[@sarweashrao3001]

at 5:55 the B suppose to increase when R decrease right...because its is inversely propotional.....??

[@samiratamma]

Yea...that's what I thought??

[@kawalmeetsaluja8202]

He said the right thing but made the direction of the arrow wrong and yes you are right

[@Tomyato]

Yeah, I was a bit confused

[@Tomyato]

Yeah, I was a bit confused

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Lab prep done thanks goat

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Love your videos, you ease alot of the anxiety that comes with learning these things with your well thought out explanations and train of thought that all flow very easily. Much thanks and appreciation from me!! :)

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you are the man of Magnetism.....seriously outstanding

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I came here without having a test to take urgently. I guess I'm improving.

[@o.g.dominus]

Well, updates: I left at once and I'm coming back now the test is tomorrow morning

[@armaangrewal545]

@@o.g.dominus how did you do on the test?

[@o.g.dominus]

@@armaangrewal545 I got 3/4 (3 out of 4 questions)

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@@o.g.dominus oh thats good bro I jus got 94% on my last physics quiz 7.5/8

[@o.g.dominus]

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u saved my life in orgo 1 and 2 , physics 1 and now 2. My professor doesn't explain anything if it wasn't for you I'd wouldn't have passed. Can you make Diff Eq and linear algebra video too please would help a lot Thanks

[@Tschaen7692]

5:30 the arrow should point upwards for R, since it is reversible related to B.

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One of the best teachers😮

[@nivyanandagopal6842]

at 5:37, you say that magnetic field decreases when radius decreases but isnt it the vice versa? i.e. the magnetic field increases when radius decreases?? also at 22:38 you say its out of the page but i think you drew the left hand instead of the right so it is into the page

[@f-22raptor25]

1. yes youre right. its inv proportional 2. No this one is still out of the page

[@rupan437]

F=BIL is not left hand rule?

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Bruhhhhh, if you know how many times you have saved me during my final exams for my semester ‼️‼️‼️❤️❤️❤️❤️❤️... Keep doing this 💯

[@jesselin2682]

1:04:58 when I use the right hand rule, the force goes out of the page? I'm confused about that.

[@merinashokkumar14]

I'm pretty sure I am late in trying to answer this but: For the left side, you place your thumb facing up, and your fingers facing to the right. Doing this will make it so that your palm faces away from out (into the page) For the right side, you place your thumb facing down, and your fingers facing to the right. Doing this will make it so that your palm faces towards you (out of the page)

[@samuelkasuni2112]

Man you deserve Nobel prize for excellence in teaching methods

[@jagosjovanovic4870]

I should've skipped the last 2 weeks of class and just watched this video instead, sending links to everyone I know

[@lillpure3]

That's why you the 🐐 man, easy to understand, clearly explained, practice understandable and logical. Just perfect and a big thankyou 🙏🏾

[@eliotlee454]

*Organic Chemistry Tutor* : posts me, notices timestamp: *clicks 1.5/1.75 speed furiously*

[@baka_geddy]

me : also boosts the audio.

[@megmullins2368]

You are the best. Studying for Phys 2 final and you are an angel

[@kt7on498]

Not sure if this will get answered because this video is quite old, but with the strength of magnetic field at 16:09 is the magnetic field still wrapping around the wire current, or is it travelling horizontally?

[@klum8872]

It's my junior highschool year... Kinda intrested in these concepts.

[@coldblaze100]

good path

[@aryamaupadhyaya6014]

It's our senior high school and this is gonna be a part of exams so good going mann

[@hudson729]

Man i wanna know is there a subject that u r not experienced in u r a gift for students

[@ykl178]

Wow what a great video thanks.

[@roryy08]

best teacher ever. honestly you teach WAYYYY better than my physics teacher he barley knows shit🙏🏻😭

[@spoons3208]

who’s watching this during quarantine

[@kavyajain2210]

what's the logic of this comment?

[@realchickennuggy]

@@kavyajain2210 lol

[@dr.kelpshake4573]

I'm learning this content in high school for free but I still feel the need to pay this man.