Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 29, Problem 2P
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(a) The peak voltage of an ac supply is 300 V. What is the rms voltage?(b) The rms value of current in an ac circuit is 10 A. What is the peak current?
A circuit contains an ac generator and a resistor. What happens to the average power dissipated in the resistor when the frequency is doubled and the rms voltage is tripled? (a) Nothing happens, because the aver- age power does not depend on either the frequency or the rms voltage. (b) The average power doubles because it is proportional to the frequency. (c) The average power triples because it is proportional to the rms volt- age. (d) The average power increases by a factor of 32 5 9 because it is proportional to the square of the rms voltage. (e) The average power increases by a factor of 2X3=6 because it is proportional to the product of the frequency and the rms voltage.
In an AC circuit, the ratio of RMS value to pick value of current is total power dissipated in the series
Chapter 29 Solutions
Physics for Scientists and Engineers
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