1.

Assertion (A): In our houses, the current in A.C. 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 true and R is the correct explanation of A
B. Both A and R are true but R is NOT the correct explanation of A
C. A is true but R is false
D. A is false but R is true
Answer» E.


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