alleryIn India, the frequency of AC supply is approximately:
A50 Hz
B25 Hz
C60 Hz
D100 Hz
Answer & Solution
Correct answer: A. 50 Hz
1. India's domestic supply is alternating current at 220 V.
2. The current direction reverses many times per second.
3. The AC supply frequency in India is 50 Hz.
4. So the current direction reverses 100 times per second (twice per cycle).
_Source: syllabus Science Ch 13 'Magnetic Effects of Electric Current' (learncbse.in extract)_
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