it has been done... i will give u the link...
a line charge λ is uniformly onto thew rim of a wheel of mass M & radius R. The wheel has light non- conducting spokes & is free to rotate without friction about its axis. A uni form magnetuc field exists over a circular region with radius a inside the wheel as shown. B=-B2 k(r<=a) =0 elsewhere What is the angular velocity of the wheel after the field is suddenly switched off.
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UP 0 DOWN 0 0 14
14 Answers
Abhishek Priyam
·2009-03-15 08:57:35
http://targetiit.com/iit_jee_forum/posts/gud_area_lets_see_whether_u_can_calculate_it_1480.html
Abhishek Priyam
·2009-03-16 06:34:48
http://targetiit.com/iit_jee_forum/posts/ncert_ques_2394.html
this time correct link ;P