求电路电流I
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求电路电流I
求电路电流I
求电路电流I
根据运放虚断、虚短的性质:
V2 = V1 ,I2 = 0 ,则:
I1 = V2 / 5K = -10 / 5K = - 2 mA = (V3 - V2)/ 1K = (V3 +10 )/ 1K
V3 = - 12 V
I = (V1 - V3 )/ 10 K = (- 10 + 12)/ 10K = 0.2 mA