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The values of voltage and frequency of electric supply for domestic use in India are:

The values of voltage and frequency of electric supply for domestic use in India are: Correct Answer 220 V (r.m.s), 50 Hz

CONCEPT:

  • As per Indian standard for domestic power supply we use A.C current, which is also known as alternating current since they change its polarity at a certain interval of time.
  • Now the two principal properties of the A.C electric power supply are Voltage and frequency.
  • And we use 220 V and 50 Hz power supply for our common domestic use
  • Where 220 V is the potential difference and 50 Hz is its frequency.

EXPLANATION: 

  • The voltage and frequency of domestic power supply used in India are 220 volt and 50 Hz respectively. So option 2 is correct.
  • This voltage is the RMS voltage that's why written as 220 V (r.m.s), 50 Hz.

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