Multiple choice

During the course of power transmission the peak value of the voltage is

  1. 180 V

  2. 220 V

  3. 280 V

  4. 311 V
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

For AC power transmission, the RMS voltage in India is 220V. The peak voltage (maximum instantaneous value) is √2 times the RMS value, so peak = 220 × √2 = 220 × 1.414 = 311V approximately. This peak value represents the maximum voltage reached during each cycle of the alternating current waveform. 220V is the RMS (root mean square) voltage, which is the effective DC equivalent.

Keep practicing — related questions