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Ohm's law for a pure resistor holds for which kind of source?
ABoth ac and dc voltages
BNeither ac nor dc sources
COnly sinusoidal ac sources
DOnly direct current sources
Answer & Solution
Correct answer: A. Both ac and dc voltages
For a resistor the current amplitude equals vm divided by R, the same relation as in dc, so Ohm's law works for both.
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