Multiple Choice
An AC source produces an alternating current in a circuit with the function . What is the frequency of the source? What is the maximum current in the circuit?
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31. Alternating Current
Alternating Voltages and Currents
Multiple Choice
The current in an AC circuit takes 0.02 s to change direction. What is the angular frequency of the AC source?
A
6.4×10−3 s−1
B
0.04 s−1
C
0.25 s−1
D
157 s−1
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