-
A conductor of length 0.4 m is moving with a speed of 7 m/s perpendicular to a magnetic field of intensity 0.9 Wb/m2. The induced e.m.f. across the conductor is
-
- 1.26 V
- 2.52 V
- 5.04 V
- 25.2 V
Correct Option: B
Length of conductor (l) = 0.4 m; Speed (v) = 7 m/s and magnetic field (B) = 0.9 Wb/ m2. Induced e.m.f. (V) = Blv sin θ = 0.9 × 0.4 × 7 × sin 90º = 2.52 V.
