Question

A metallic metre stick moves with a velocity of 2 m s⁻¹ in a direction perpendicular to its length and perpendicular to a uniform magnetic field of magnitude 0.2 T. Find the emf induced between the ends of the stick.

Answer 1

Given:-

Length of the stick, l = 1 m

Magnetic field, B = 0.2 T

Velocity of the stick, v = 2 m/s

Thus, we get

Induced emf, e = Blv = 0.2 × 1 × 2 = 0.4 V