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In India, the alternating current supplied to homes changes its direction
Aonce per second
Bnever
C50 times per second
D100 times per second
Answer & Solution
Correct answer: C. 50 times per second
1. AC reverses direction periodically; its frequency in India is 50 Hz.
2. A frequency of 50 Hz means it completes 50 cycles, i.e. changes direction **50 times per second** (actually reversing twice per cycle).
3. Direct current (DC) flows in one direction only.
_Source: Karnataka SSLC (KSEEB) Class 10 Science, Ch13 'Magnetic Effects of Electric Current', §13.5_
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