A vertical rectangular coil of sides `5 cm xx 2 cm` has 10 turns and carries a current of `2A`. The torque ( couple) on the coil when it is placed in

Monjur Alahi

A vertical rectangular coil of sides `5 cm xx 2 cm` has 10 turns and carries a current of `2A`. The torque ( couple) on the coil when it is placed in a uniform horizontal magnetic field of `0.1T` with its plane perpendicular to the field is
A. `4xx10^(-3)N-m`
B. Zero
C. `2xx10^(-3)N-m`
D. `10^(-3)N-m`


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Correct Answer - 2
`tau=BAIN cos theta`

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