Question

At a place earth's magnetic field $5 \times 10^{5} Wb / m ^{2}$ is acting perpendicular to a coil of radius $R=5 \,cm$. If $\mu_{0} / 4 \pi=10^{-7}$, then how much current is induced in circular loop?

• A. 0.2 A
• B. 0 A
• C. 4 A
• D. 40 A

Answer 1

Answer: (B)

0 A

Answer 2

As the earth?s magnetic field is acting perpendicular to the coil and as here is no charge of magnetic flux through the coil, the current induced in the coil is zero.