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A long wire carrying current I is connec...

A long wire carrying current I is connected to a rectangular metallic frame as shown in the adjacent figure. A uniform magnetic field B along y-axis is switched on. The mass linear density of the frame is `lambda`. The frame lies in y-z plane, The instantaneous angular acceleration of the frame is

A

zero

B

`(12lB)/(lambdaa)`

C

`(4lB)/(lambdaa)`

D

none of the above

Text Solution

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The correct Answer is:
A
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