Question

In electromagnetic induction, the induced charge in a coil is independent of

• A. Time
• B. Change in flux
• C. Resistance in the circuit
• D. None of the above

Answer 1

Answer: (A)

Time

We know that, $e=\frac{d\varphi }{dt}$
But $e=iR$
And $i=\frac{dq}{dt}$
$\therefore \frac{dq}{dt}\cdot R=\frac{d\varphi }{dt}$
$dq=\frac{d\varphi }{R}$.