A circuit consists of an ideal ac generator, a 20-uF capac- itor, and an 80-2 resistor, all connected in series. The output of the generator has a peak emf of 20 V, and the armature of the genera- tor rotates at 400 rad/s. Find (a) the power factor, (b) the rms current, and (c) the average power supplied by the generator. 62
A circuit consists of an ideal ac generator, a 20-uF capac- itor, and an 80-2 resistor, all connected in series. The output of the generator has a peak emf of 20 V, and the armature of the genera- tor rotates at 400 rad/s. Find (a) the power factor, (b) the rms current, and (c) the average power supplied by the generator. 62
Chapter15: Alternating-current Circuits
Section: Chapter Questions
Problem 7CQ: Can the instantaneous power output of an ac source ever be negative? Can the average power output be...
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Question
![• A circuit consists of an ideal ac generator, a 20-uF capac-
itor, and an 80-2 resistor, all connected in series. The output of the
generator has a peak emf of 20 V, and the armature of the genera-
tor rotates at 400 rad/s. Find (a) the power factor, (b) the rms
current, and (c) the average power supplied by the generator.
62](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3b49e1f8-38f9-4b50-8332-474eb6873f81%2F7634e0a7-21bc-4fa4-8c46-1877795c7be8%2Febiiy7v_processed.jpeg&w=3840&q=75)
Transcribed Image Text:• A circuit consists of an ideal ac generator, a 20-uF capac-
itor, and an 80-2 resistor, all connected in series. The output of the
generator has a peak emf of 20 V, and the armature of the genera-
tor rotates at 400 rad/s. Find (a) the power factor, (b) the rms
current, and (c) the average power supplied by the generator.
62
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