The subsequent problems deal with the circuit below where the op amps are LM741's powered by a ±15 V power supply. Assume R1 = R2 = R3 = R4 = R. Assume the op amps are ideal.
If V2 = 2 V, the current output by op amp 2 is
A. 2 / R
B. 2 / 3R
C. 1 / R
D. 0
E. 3 / R
Answer: E
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