Magnetism : compressional force

find the compressional force on the ring of radius r carrying current i ,in a magnetic field as shown.

Ans given is mew₀*r*i

2 Answers

Hint: Take a small element and draw its fbd

force on it will be i dl B towards the center..

Also there will be two tention forces acting on both sides.

acceleration towards the center is w^2 r

The two tention forces will have their components towards the center given by T sin (theta/2)

Now you have to solve it like the ring problem?

Can u give it a shot? else i will solve it

262

Aditya Bhutra ·2011-08-02 03:15:30

thnx a lot !!

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