0
$\begingroup$

What is the developed electric field when a conducting loop is placed in a magnetic field that varies with time ? I know that an emf is generated in the loop due to which current flows through it but what is the electric field ?

$\endgroup$

1 Answer 1

0
$\begingroup$

According to the integral Maxwell-Faraday equation, the induced electric field $E$ in a circular conducting loop (radius $R$, area $A$) in a varying perpendicular homogeneous magnetic field $B$ is given by $$E=\frac{\int \vec E d\vec r}{2\pi R} =\frac{-A\frac {dB}{dt}}{2\pi R}=-\frac{R}{2}\frac{dB}{dt}$$

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.