Question

A conductor of resistance $2\Omega$ and length 0.5m is moving with a uniform speed of 0.4 m/s perpendicular to a magnetic field of induction 1 T. If this is connected to a load resistance of $3\Omega$ , the current in the circuit is

• A. 0.04 A
• B. 0.02 A
• C. 0.01 A
• D. 0.08 A

Answer 1

The correct option is A 0.04 A

$i=\frac{Blv}{R}$
$i=\frac{1\times 0.5\times 0.4}{(2+3)}$
$i=0.04A$