Alternating Current - Result Question 7
7. In an a.c circuit the e.m.f. (e) and the current (i) at any instant are given respectively by
[2008]
The average power in the circuit over one cycle of a.c. is
(a)
(b)
(c)
(d)
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Answer:
Correct Answer: 7. (c)
Solution:
- (c) The average power in the circuit over one cycle of a.c. is given by