The current in a solenoid of 240 turns, having a length of 12 cm and a radius of 2 cm, changes at a rate of `0.8 A s^(-)`. Find the emf induced in it.

Explanation

To find the induced EMF in the solenoid, we will follow these steps:

### Step 1: Identify the formula for induced EMF
The induced EMF (ε) in an inductor (or solenoid) is given by the formula:
\[ \epsilon = L \frac{di}{dt} \]
where:
...