A wattmeter shows 57 watts of VA power in a circuit.
The resistance is known to be 50 Ω, and the true power is known to be 40 watts.
What is the absolute-value impedance?
A. 50 Ω.
B. 57 Ω.
C. 71 Ω.
D. none of the above
Show Answer
Answer: C
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