A rod of length l rotates with a small but uniform angular velocity ω about its perpendicular bisector. A uniform magnetic field B exists parallel to the axis of rotation. The potential difference between the two ends of the rod is

Question

A rod of length l rotates with a small but uniform angular velocity ω about its perpendicular bisector. A uniform magnetic field B exists parallel to the axis of rotation. The potential difference between the two ends of the rod is, zero, 1 2 ω B l 2, ω B l 2, 2 ω B l 2

MARKS App · Accepted Answer

Induced emf is generated between centre and end, and at two end. Potential will be same, hence, no potential difference is produced.

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