The subsequent problems deal with the circuit below where all voltage sources are dc and the circuit is assumed to be in steady state. Also, R1 = R2 = R3 = R4 = R.
The power added to the circuit by source V2 is
A. ?I3V2
B. ?I3 / V2
C. 0
D. I3V2
E. I3 / V2
Answer: A
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