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Frequency of Indian AC supply:
A50 Hz (Europe/Asia mostly 50; USA 60)
B100 Hz
C60 Hz
D50 Hz
Answer & Solution
Correct answer: D. 50 Hz
India, EU, most of Asia: 50 Hz. USA, Canada, parts of Latin America, Saudi Arabia, Korea: 60 Hz. Period: T = 1/f = 20 ms at 50 Hz. Angular: ω = 2πf = 314 rad/s.
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