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A rectangular coil (Dimension 5 cmxx2.5 ...

A rectangular coil (Dimension `5 cmxx2.5 cm`) with 100 turns, carrying a current of 3A in the origin and in the X-Z plane. A magnetic field of 1 T is applied along X-axis. If the coil is tilted through `45^(@)` about Z-axis, then the torque on the coil is :

A

0.27 Nm

B

0.38 Nm

C

0.55 Nm

D

0.42 Nm

Text Solution

Verified by Experts

The correct Answer is:
A
`tau = mu B sin theta = (ni A) B sin theta = 100xx3xx(5xx2.5)/(100xx100)xx1xx(1)/(sqrt(2))=0.265N ~~ 0.27N`
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