Question

A 10 metre wire kept in east-west falling with velocity 5 m/sec perpendicular to the field$0.3 \times 10^{- 4}Wb/m^{2}$. The induced e.m.f. across the terminal will be

• A. 0.15 V
• B. 1.5 mV
• C. 1.5 V
• D. 15.0 V

Answer 1

Answer: (B)

1.5 mV

Answer 2

Induced e.m.f.

$= Blv = 0.3 \times 10^{- 4} \times 10 \times 5$

$= 1.5 \times 10^{- 3}V = 1.5\mspace{6mu} mV$