Alternating Current - Result Question 28
28. A coil of 40 henry inductance is connected in series with a resistance of
[2004]
(a) 20 seconds
(b) 5 seconds
(c)
(d) 40 seconds
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Answer:
Correct Answer: 28. (b)
Solution:
- (b) Time constant is
Given,
Current through circuit
Power dissipated at Resonance
