5 圖示理想運算放大器電路,若 R1 = 3 kΩ、R2 = 7 kΩ、Ra =1 kΩ、Rf =19 kΩ , , v1 = 1V v2 = − 1V ,
則輸出電壓 v0為若干 V?
(A)0
(B)4
(C)8
(D)10

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統計: A(9), B(8), C(132), D(6), E(0) #799910
統計: A(9), B(8), C(132), D(6), E(0) #799910