The rms value of current in a 50 Hz AC source is 4 A. What will be the value of current after 1/400 seconds after its value becomes zero?

Explanation

To solve the problem, we need to find the current in an AC circuit after a specific time has passed since the current was zero. Here’s a step-by-step breakdown of how to approach the problem:

### Step 1: Understand the relationship between RMS current and peak current
The RMS (Root Mean Square) value of current is given as 4 A. The relationship between the RMS current (\(I_{RMS}\)) and peak current (\(I_0\)) is given by the formula:
\[ I_{RMS} = \frac{I_0}{\sqrt{2}} \]
From this, we can find the peak current.
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