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

A metallic rod of mass per unit length 0.5 kg`cdot m^(-1)` is lying horizontally on a smooth inclined plane which makes an angle of `30^(@)` with the horizontal. The rod is not allowed to slide down 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 is

A

14.76 A

B

5.98 A

C

7.14 A

D

11.32 A

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