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The frequency of alternating current in India is:

A50 Hz
B60 Hz
C40 Hz
D10 Hz
Answer & Solution
Correct answer: A. 50 Hz
1. The AC changes direction after every one hundredth of a second. 2. That corresponds to a frequency of 50 Hz. 3. Most power stations built these days produce AC. _Source: syllabus Science, Ch 13 'Magnetic Effects of Electric Current'_
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