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Question
The standard household supply in India is 220 V. This value refers to ______.
Options
Peak voltage
Average voltage
Instantaneous voltage
RMS (effective) voltage
MCQ
Fill in the Blanks
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Solution
RMS (effective) voltage
Explanation:
The 220 V mentioned for household supply is the RMS voltage. The actual peak voltage is vm = \[\sqrt 2\] × 220 ≈ 311 V. RMS values are used because they represent the equivalent DC value for power calculations.
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