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A small coil C with N = 200 turns is mounted on one end of a balance beam and introduced between the poles of an electromagnet. The cross-sectional area of the coil
S=1.0cm^2, the length of the arm OA of the balance beam is L=30 cm.

When there is no current in the coil the balance is in equilibrium. On passing a current I = 22 mA through the coil the equilibrium is restored by putting the additional counterweight of mass M = 60 mg on the balance pan. Find the magnetic induction at the spot where the coil is. located.

Ans: .4 T..

9 comments:

  1. AnonymousMarch 5, 2011 at 7:52 PM

    9/22 ?????

    ReplyDelete
  2. Sambhav GuptaMarch 5, 2011 at 8:18 PM

    9000/22 tesla

    ReplyDelete
  3. AnonymousMarch 5, 2011 at 8:39 PM

    milli gram ko kg mein karenge na...

    ReplyDelete
  4. shaanMarch 5, 2011 at 9:56 PM

    yup, ~409 T
    [APS question]

    ReplyDelete
  5. AnonymousMarch 5, 2011 at 10:05 PM

    really gud yaar, APS ka question hai fir bhi galat. check the solns it is 0.409

    ReplyDelete
  6. shaanMarch 6, 2011 at 1:52 AM

    @ bhai/behn anonymous

    you take care of d units- ans 409 hi hai

    ReplyDelete
  7. AnonymousMarch 6, 2011 at 11:45 AM

    have you checked te soln, it is 0.4
    question is exactly same so, ans should also be same

    ReplyDelete
  8. shaanMarch 6, 2011 at 2:57 PM

    This comment has been removed by the author.

    ReplyDelete
  9. AnonymousMarch 6, 2011 at 4:23 PM

    This comment has been removed by a blog administrator.

    ReplyDelete

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