alleryStart learning →A source e = 140 sin(3142t) volts is applied to a resistor. What is its frequency?
A500 Hz
B50 Hz
C3142 Hz
D314 Hz
Answer & Solution
Correct answer: A. 500 Hz
With ω = 3142 rad/s, f = ω/2π = 3142/6.284 = 500 Hz.
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