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CGP EDU Academic Team
Published on: August 13, 2026
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° 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
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Verified by ExpertsThe correct answer is:
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limb cos 30° = mg sin 30°
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