Question

A 30 cm long conductor moves normal to a uniform magnetic field of 0.05 T at 20 ms-1 calculate induced emf

Answer 1

Answer: The induced emf is $E = 30\times 10^{-2}Volt$.

Explanation: When a conductor cuts through the lines of magnetic flux then, an emf is induced in a conductor.

Given that,

Length l = 30 cm

Magnetic field B = 0.05 T

Velocity v = 20 m/s

We know that,

$E = Blv$

$E = 0.05\ T\times 30\times 10^{-2}\ m\times 20\ m/s$

$E = 30\times 10^{-2}Volt$

Hence, the induced emf is $E = 30\times 10^{-2}Volt$.