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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2018
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Q)

A metallic rod of mass per unit length $0.5 \; kg \; m^{-1}$ is lying horizontally on a smooth inclined plane which makes an angle of $30^o$ 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 is


( A ) 14.76 A
( B ) 5.98 A
( C ) 11.32 A
( D ) 7.14 A

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