alleryStart learning →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_
Keep practising Magnetic Effects of Electric Current
Browse all Magnetic Effects of Electric Current questions for Karnataka SSLC (Class 10), or explore more Science topics.
Related questions
Match each rule to what it givesOverloading of a domestic circuit happens whenMagnetic field lines are said to be crowded (closer together) where the magnetic field isA short circuit occurs whenAn electric fuse protects a circuit byIn a household wiring, the wire that acts as a safety measure by connecting the metallic bThe direction of the current induced in a conductor moving in a magnetic field is given byAn electric generator works on the principle of