What is the frequency of alternating current (AC) supplied in domestic circuits in India?
Answer and explanation
Correct answer: D.
- Step 1: In India, domestic electric supply is delivered as alternating current at a potential difference of 220 V and a frequency of .
- Step 2: A frequency of means the current changes direction 100 times every second.
Answer
.
Why not the others: is standard in the United States and Canada; is the frequency of direction reversals; and represents direct current (DC).
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