Reactance: A simple ac circuit is composed of a capacitor connected across the terminals of an ac power source. If the frequency of the source is doubled, what happens to the reactance of the capacitor?
A. It increases by a factor of 4.
B. It increases by a factor of 2.
C. It increases by a factor of 
.
D. It decreases by a factor of 2.
E. It decreases by a factor of 4.
Answer: D
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