A 100 `Omega ` iron is connected to an AC source of 220 V 50 Hz . Calculate the time taken by the current to change from its maximum value to rms value .

Explanation

To solve the problem, we need to calculate the time taken by the current to change from its maximum value to its RMS value in an AC circuit. Here’s a step-by-step breakdown of the solution:

### Step 1: Understand the given values
- Resistance (R) = 100 Ω
- Voltage (V) = 220 V (This is the RMS voltage)
- Frequency (f) = 50 Hz

### Step 2: Calculate the maximum current (I0)
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