Find the time required for a `50 Hz` alternating current to change its value from zero to the rms value.

Explanation

To find the time required for a 50 Hz alternating current to change its value from zero to the RMS value, we will follow these steps:

### Step 1: Understand the relationship between current and time
The alternating current (AC) can be expressed as:
\[ I(t) = I_0 \sin(\omega t) \]
where \( I_0 \) is the peak current, \( \omega \) is the angular frequency, and \( t \) is time.

### Step 2: Determine the RMS value of the current
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