a coil of 100 turns and area (2÷100)m^2 pivoted about a vertical diameter in a uniform magnatic field carries a current of 5A.when the coil is held with its plane in north south direction it experiences a torque 0.3Nm and in east West direction is 0.4Nm. magnatic field is?? (neglect earth mag fld)

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a coil of 100 turns and area (2÷100)m^2 pivoted about a vertical diameter in a uniform magnatic field carries a current of 5A.when the coil is held with its plane in north south direction it experiences a torque 0.3Nm and in east West direction is 0.4Nm. magnatic field is?? (neglect earth mag fld)

Nasim Parvez 12th Apr, 2020

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Answer (1)

Sk Student Expert 22nd May, 2020

Hi

Couple because of attractive field following up on attractive snapshot of the current coil= M X B in

vectors

Couple = M * B * Sin theta

Theta. = point among M and B.

M = I * N*A = 5*10* 0.02 = 1 units

Couple = 0.3 = 1*B*sin theta

Further, wrt East West:

Couple = 0.4 = 1 *B*Cos theta

Figuring out and including we get

B = 0.5 T

Hope it helps

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Nasim Parvez

22nd May, 2020

too late to answer

Reply

Sk

Student Expert 22nd May, 2020

Nasim Parvez Sorry for that

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