XII 40 Lorentz's force on charge in Mag field

[@nvsrox]

It was an excellent lecture on lorentz force and the way you explained how a charged particle will move in a helical shape was commendable. Sir keep posting lectures it's helping loads of students.

[@MrDeepak453]

Sir you are just awesome u teach fantastic.I've understood Lorrentz force very well.Thnks sir for uploading these wonderful videos luv it...................

[@anmoldhingra4112]

Sir when the charge is inserted perpendicular to the magnetc field do the magnetc field by that charge due to movement also changes the direction or effect something.

[@rajaramanganapathy4203]

sir your kirchoffs laws concepts helps me solve problems even with more confidence

[@vipingupta1461]

Sir.. in vertical dir for charge g to be considered or not I'm in doubt...

[@anilkumarchoudhary5798]

very good question asked by akshay kamath . velocity filter never accelerate particle it only select which partical have desired velocity. if u set E/B greater than c , no partical will be selected.

[@rameshprajapati9197]

sir if direction of magnetic and electric field will be same and eletron projected in the same direction then velocity of electron will be?

[@ansuman143ad]

Thank u sir thnx a lot.nowadays education is just a way of earning money for most of the teachears ,but sir u r one n only.amezing.hats off to u sir

[@soumyasinha3278]

i have a series of doubt plz make them clear:- Q1. In very starting u said Elect. Field apply force on static charge but in this lecture u were explaining the cases for force acting on a charge moving (i). parallel (ii). perpendicular. how force is applied in elect. field though the charge is moving? Q2. U gave an expression velo. v= (2qV)/m in elect. field. for a given situation charge, pot. diff. and mass are const. then there should be no gain in velo. means elect. field cant increase velo.?

[@kunibaki]

sir aapne kaha tha ki magnetic field can only change the direction of the charge particle and now this formula is saying that v is directly proportional to magnetic field iam really confused sir please do help me

[@uppalapadma2690]

Sir at 41:32 u have said that if velocity increases then radius increases... But in ur 1st video u said that if the velocity of the charged particle increases (in the presence of a magnetic field) then the magnetic force on it increases and then radius decreases..

[@ask4huzaifa1]

okay sir thank you

[@shivaniupadhyay3648]

sir at 25:35 u said that magn. force do not affect velocity, while electrical force does..contradictorily at 56:58 u said just the opposite....??!!

[@soumyasinha3278]

Q3. In velo. filter u gave V=E/B as per u 500 is desired velo suppose if charges hav velo. more than 500 velo then acc to above eqn E will be more then it should move down if velo less than 500 then B is more and particle should move upward. But u explained just opposite. please explain wherever i am going wrong? Q4. r=(mv)/(qB) if v more then radius is more but in starting of this lesson u said if v more force will be more and hence radius will be less.. how this contrast? PLZZ MAKE ME CLEAR ..

[@shaikhzoya2002]

sir why in expression for pitch time period is taken as time to cover that pitch(distance).time period is time taken to cover one rotation and pitch is distance between two rotation so how?

[@priyasingh-fr9vg]

sur in first case initilly charge particle moving along E.Fbut we take initially velocity 0 why🎓

[@sasidharan8211]

when a charged particle enters normal to an electric field it experience acceleration and takes a parabolic path .Here force is perpendicular to the velocity . In case of magnetic field force is perpendicular to the velocity but there the force can't accelerate the charge why

[@soumyasinha3278]

thank u sir and theres two more Que. Q3. & Q4. plz scrowl down...

[@nailsandnotes]

finally understood Velocity Selector!! :) Thank you sir! :)

[@ansuman143ad]

Plz sir

[@akshaykamath7719]

sir x should be inversely proportional to y no? then why s the formula x=1/2qey^2/mv^2

[@arshjeetsingharshjeetsingh8867]

sir plz upl,oad question of each topic

[@ansuman143ad]

Sry for disturbing u again sir.but my brother had just passed 10th exam and now he is in XI std.so would u send me your notes of XI physics

[@surbhichauhan37]

Sir at 40.49 u have found mass of Helium by adding number of protons and number of nuetrons in nuclues of helium then mass we get 4 but why have u taken 4times mass of proton

[@manzoorrather2038]

So good lecture same as nv

[@DeepakYadav-cx8jz]

sir I have a ques. if there {when charge is loving along E } is a +ve charge , then it will accelerate in electric field but how can a -ve charge accelerate??? because it would experience a opposite force (repultion) from the other end sir plz tell me where i am going wrong

[@rahulrjb]

sir i am from kolkata

[@muhammadshakil5802]

Sir what is hall effect?and isn't hall effect there in ur lecture videos.

[@ask4huzaifa1]

sir in 32:26 you said that velocity depend upon magnetic field....but earlier in d same video you emphasis us that velocity doesn't depend upon magnetic field......plz help

[@kunalbatra4166]

I have a doubt sir . my teacher said that "magnetic field inside a long straight solenoid- carrying current decreases as we move towards its end" but my tuition teacher said that " it is same at all points" pls tell me who's write.

[@narlasaketh4524]

Kunal Batra

[@dhirajsingh3519]

Exillence

[@muhammadirfan6804]

great sir

[@akshaykamath7719]

sir actually there is no particle that can travel faster than light,but using the principle of velocity filter we can simulate the fields and make the particle faster than light. sir is this really possible.

[@lokeshgarg4794]

sir, can you send ur your note to me via email.

[@rajaramanganapathy4203]

sir i want to contact you

[@ansuman143ad]

Hello sir i have been watching ur videos and it has helped me a lot in my academic periods.now its the time of my younger brother.but sir he has a little less memory power than me for which he wants ur notes.so would u dont mind then plz send ur notes to me via email for which i shall ever remain grateful to u

[@imamulhaque3894]

bakwas lecture