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NEET 2018 Physics and Chemistry

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Question : 8

Total: 90

A metallic rod of mass per unit length 0.5kgm−1 is lying on a smooth inclined plane which makes an angle 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 is

7.14 A
5.98 A
11.32 A
14.76 A

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