Question

When the rate of change of current is unity, the induced emf is equal to

• A. thickness of coil
• B. number of turns in coil
• C. coefficient of self inductance
• D. total flux linked with coil

Answer 1

Answer: (C)

coefficient of self inductance

As, $\epsilon =L\frac{dI}{dt}$
When $\frac{dI}{dt}=1$

$\therefore \epsilon =L$

Option c