Torque on a Current Loop In a Magnetic Field & Magnetic Dipole Moment - Physics

This physics video tutorial explains how to calculate the torque on a current loop in a uniform magnetic field as well as the magnetic dipole moment. It explains how to derive the formula of the torque on a current carrying coil.
Magnetic Force on a Wire:
• Magnetic Force on a Cu...
Magnetic Force on a Moving Charge:
• Magnetic Force on a Mo...
The Homopolar Motor:
• Physics - Homopolar Mo...
The Lorentz Force:
• Battery Powered Electr...
Magnetic Field of a Current Carrying Wire:
• Magnetic Field of a St...
___________________________________
Magnetic Sensors - The Reed Switch:
• Magnetic Sensors - The...
Magnetic Force Between Two Parallel Wires:
• Magnetic Force Between...
Ampere's Law - Magnetic Field of a Solenoid:
• Ampere's Law & Magneti...
Magnetic Field of a Toroidal Solenoid:
• Magnetic Field of a To...
Magnetic Field of a Moving Charge:
• Magnetic Field of a Mo...
____________________________________
Torque on a Loop - Magnetic Dipole Moment:
• Torque on a Current Lo...
The Hall Effect:
• Hall Effect Explained,...
Magnetic Flux:
• Magnetic Flux, Basic I...
Faraday's Law of Electromagnetic Induction:
• Faraday's Law of Elect...
Lenz's Law - Induced Current:
• Lenz's Law, Right Hand...
_______________________________________
Final Exams and Video Playlists:
www.video-tuto...
Full-Length Videos and Worksheets:
/ collections

[@TheOrganicChemistryTutor]

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

[@TheAsianKidxD]

Thank you SO SOOO much for these videos!!! You have no idea how much this chanel has helped me to get through both my high school and college! Thanks again!!!

[@Gismho]

Excellent example. Well explained with very good diagrams. Thank you.

[@wajdimajed6071]

Thank you I wish all teachers were like you ❤️☺️

[@matthewcheah3178]

You are simply wonderful

[@mambamed8345]

only 6 days until my cumulative physics 2 finals and OCT is the only one giving me hope lmaooo

[@jahansaid6382]

Hey, I don't know how to thank you for making me understand the concept. Thanks :)

[@weibinyu]

Just a heads up, some book refers to the normal line as the area vector. I think using a normal line is much more intuitive!

[@kylewolfe_]

Using the area vector can be useful when you're only given vector quantities for fields and angles for where the loops are oriented. If you're having trouble coming up with a diagram, you can always just take the cross product of the length and width vectors to get your area vector. Just make sure you follow the right-hand method with the current so that the directions agree.

[@jonmycko3288]

Your explanation of the right hand rule is my favorite.

[@janiwoii7725]

So when the teta is zero (no torque,no force),the only reason that the square coil keeps on swinging is because of the inertia right?

[@stevensaber8598]

ma man that helped me a lot, thanls for the effort .

[@kristopherbeauchemin9941]

Very Good Example! Thank you!

[@alphacygnus2607]

The formula is right but there is a problem with the derivation. In the equation F = ILB sin theta, the angle is between the current and magnetic field. That is always 90 degrees for the two segments that produce torque. The magnetic field is always to the right, and the currents are into or out of the screen. The theta in the final formula comes from calculating the lever arms, and is the angle between the magnetic moment (perpendicular to the coil) and the magnetic field.

[@lexs7218]

very true.

[@manishasaxena6657]

formula is F= I(LxB)

[@lallulallalla]

Nice one ...helped me . Hats off 👍👍

[@somebody251]

Big thankyou!

[@softwareeEngineering]

Thanks for all your classes bro, truly amazing. But please can you use more visible colours other than blue, pretty hard to see

[@jesusmrosario-claudio4104]

Thank you once again.

[@yulin2707]

thank you great video

[@MultiSubjector]

Aren’t there two normal surfaces? How do you know which way the dipole moment vector points if the plane is angled

[@jakeimanaka6141]

Use the right hand rule. Curl your fingers in the direction of the current flow and point your thumb. The direction of your thumb is the direction of the normal surface.

[@zweltzcited4852]

90 minutes until the worst exam of my life lol

[@magranin7319]

There is something that doesn't make sense to me here. Whenever the face of the coil is perpendicular to the magnetic field the area vector is parallel to that magnetic field meaning theta is 0 and no torque is applied.

[@Cman5103]

Your absolutely right, but inertia keeps us moving past that point, where we experience a torque again (opposite this time) :) (explained around 6:20)

[@fadeyibimayowa1021]

My textbook wrote and calculated with cos theta instead,how do I know the right one to use. And my textbook also said the maximum value of torque is obtained when the plane of the coul is parallel to B theta=0 degree

[@plam135]

How about a ring carrying current ?

[@ruhamayeshitila5112]

Thank u so much i rlly understand what u do

[@HorizonSpeed26]

Thank you

[@unsuzkurabiye35]

nice

[@joydeepnath9197]

Left hand rule or right hand rule???

[@jesselam5867]

Right hand Rule

[@noweare1]

Right hand rule when using conventional current direction, (+ to -) left hand rule using electron current direction ( - to +)

[@Ogiiishred]

My textbook says its cos theta... Any help ? im on about the equation you derived at 4:55

[@samatha1647]

No.It's sin theta only...... May be printing mistake in ur textbook.

[@rohanbarde5958]

It depends on whether you take angle with the vertical (the normal) or the angle with the plane.

[@mikhyahaustin5847]

shouldnt it be 1 m squared not .1 so the final answer should be 48 Nm

[@thisispersia9021]

your mistake is you did 10 cm x 10 cm = 100 cm^2 100 cm^2 is not equal to 1 m^2.

[@trench01]

how much volts are needed for a rotating electromagnet coil to move from a 2 tesla magnet?

[@10lad6]

🐐🐐

[@meemalifaaeen]

Torque = NIBA cos x in our book, lol

[@hoomehrmangoli5652]

Could you pleas drive the equations you use from scratch.

[@jacob9673]

hoomehr mangoli how much calculus do you know?

[@fast_gtr]

@@jacob9673 How much calculus do you know?

[@barrymoredoctor2689]

@@fast_gtr How much calculus do you know?

[@fast_gtr]

@@barrymoredoctor2689 I've only taken up to multi-variable calculus in college. I'm in ODE and Linear Algebra rn.

[@angelmpc1725]

@@jacob9673 Jaj, but still it would be nice

[@tomatrix7525]

Way way way too many ads...I got 7

[@danharlan288]

What is N?????????

[@narutos5269]

Total no. of turns in a coil

[@samhawkins2274]

I love your videos but the ads are killing me. I have never seen ads more numerous than in your videos.

[@DapaChrons]

the money goes to him! I always leave all ads on

[@Digger-Nick]

@@DapaChrons Free educational video and dude is complaining about ads lol. Some people. . .

[@jeanie9350]

then you haven't been watching much utube... 🤔🤔