測得某放大電路的輸入正弦電壓和電流的峰值分別為10mV和10μA，在負載電阻為2KΩ時，測得輸出正弦電壓信號的峰值為2V。試計算該放大電路的電壓放大倍數（）
A.400
B.600
C.800
D.200
正確答案：200
題目：測得某放大電路的輸入正弦電壓和電流的峰值分別為10mV和10μA，在負載電阻為2KΩ時，測得輸出正弦電壓信號的峰值為2V。試計算該放大電路的電壓放大倍數（）
關鍵字：智慧樹
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