Home › UP Board Class 10 › physics › Magnetic Effects of Electric Current › In India, the frequency of AC supply is approxim…
In 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: NCERT Class 10 Science Ch 13 'Magnetic Effects of Electric Current' (learncbse.in extract)_
Related questions
Frequency of AC in India is:The Earth's magnetic field is roughly comparable to that of:Direction of force on a current-carrying conductor placed in a magnetic field is reversed An electromagnet differs from a permanent magnet in that the electromagnet:A short-circuit happens when:Earthing of an electrical appliance:The colour code in Indian household wiring is: live = red/brown, neutral = black/blue, earAC (Alternating Current) reverses its direction every: