1.

Assertion (A) : In our houses, the current in AC electricity line changes direction 60 times per second.
Reason (R): The frequency of alternating voltage supplied is 50 Hz.

A. Both A and R are individually true and R is the correct explanation of A.
B. Both A and R are individually true but R is not the correct explanation of A
C. A is true but is false
D. A is false but R is true
Answer» E.


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