A 20 H inductor is placed in series with 10 W resistor and an emf of 100 V is suddenly applied to the combination. At t = 1 s from t = 1 s from the start, find the rate at which energy is being stored in the magnetic field around the inductor (givne `e^(-0.5)=0.61`).

Explanation

To solve the problem step by step, we will find the rate at which energy is being stored in the magnetic field around the inductor at \( t = 1 \) second.

### Step 1: Calculate the maximum current (\( I_0 \))
The maximum current in the circuit is given by the formula:
\[ I_0 = \frac{E}{R} \]
Where:
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