An inductor-coil of inductance 20 mH having resistance `10 Omega` is joined to an ideal battery of emf 5.0 V. Find the rate of change of the induced emf at t=0, (b) t = 10 ms and (c ) t = 1.0s.

Explanation

To solve the problem step by step, we will follow these steps:

### Given:
- Inductance \( L = 20 \, \text{mH} = 20 \times 10^{-3} \, \text{H} \)
- Resistance \( R = 10 \, \Omega \)
- EMF of the battery \( E = 5.0 \, \text{V} \)

### Step 1: Calculate the steady-state current \( I_0 \)
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