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 Vi = 20 V, V1 (for the "real" LM741) would be approximately
A. 20 V
B. 13.6 V
C. 0 V
D. 5 V
E. 10 V
Answer: B
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