Question

in one complete cycle of a.c., how many times the direction of current changes

Answer 1

Answer:

one cycle of alternating current ,it changes the polarity twice,i.e;positive cycle and negative cycle. Frequency of ac is defined as number of cycles in one second.so,change in change in polarity depends on frequency of alternating current. If f=50 it means 50 cycles in one second.

Explanation:

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