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A rectangular loop consists of N closed ...

A rectangular loop consists of N closed wrapped turns and has dimendions `a xx b`. The loop is hinged along the Y-axis. What is the magnitude of the torque exerted on the loop by a uniform magnetic field `B = B_(0)` directed along the X-axis when current `i = i_(0)` in the direction shown. The torque acting on the loop is

A

`-(4Ni_(0)abB_(0)hat(j))/(5)`

B

`(4Ni_(0)abB_(0)hat(i))/(5)`

C

`-(4Ni_(0)abB_(0)J)/(3)hat(j)`

D

`(-2Ni_(0)abB_(0)hat(j))/(5)`

Text Solution

Verified by Experts

The correct Answer is:
A
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