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A metallic rod of mass per unit length 0...

A metallic rod of mass per unit length 0.5 kg `m^(-1)` is lying horizontally on a smooth inclined plane which makes an anlge of `30^(@)` with the horizontal. The rod is not allowed to slide down by flowing a current through it when a magnetic field of induction 0.25 T is acting on it in the vertical direction. The current flowing in the rod to keep it stationary

A

7.14 A

B

5.98 A

C

14.76 A

D

11.32 A

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The correct Answer is:
A
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