CUET · PHYSICS · PYQ PAPER 2023
A bulb is rated 40 W for a 220 V supply. The peak voltage of the supply is:
- A \(110 \sqrt{2} V\)
- B 220 V
- C \(220 \sqrt{2} V\)
- D 440 V
Answer & Solution
Correct Answer
(C) \(220 \sqrt{2} V\)
Step-by-step Solution
Detailed explanation
\(V_{peak} = V_{RMS} \times \sqrt{2}\) \(V_{peak} = 220 \, V \times \sqrt{2}\) \(V_{peak} = 220 \sqrt{2} \, V\)
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