Question

The maximum instantaneous voltage in Indian household electricity is

• A. $200\text{V}$
• B. $220\text{V}$
• C. $308\text{V}$
• D. $208\text{V}$

Answer 1

The correct option is C $308\text{V}$

In India, household electricity operates at $220\text{V},50\text{Hz}$.

So, $E_{rms}=220\text{V}$

Therefore, the maximum instantaneous voltage is,

$E_0=\sqrt{2}{E}_{rms}$

$\Rightarrow E_0=1.4\times 220=308\text{V}$