NEET | 2018Magnetic field due to currentHard
Question
A metallic rod of mass per unit len gth 0.5 kg 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 by flowing a current through it when a magnetic field of induction 0.25T is acting on it in the vertical direction. The current flowing in the rod to keep is stationary is
Options
A.
7.14 A
B.
5.98 A
C.
14.76 A
D.
11.32 A
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