如图所示,R1、R2为定值电阻,L为小灯泡,R3为光敏电阻,当照射光强度增大时( )A.电压表的示数增大 B.R2中电流减小C.小灯泡的功率增大 D.电路的路端电压降
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![如图所示,R1、R2为定值电阻,L为小灯泡,R3为光敏电阻,当照射光强度增大时( )A.电压表的示数增大 B.R2中电流减小C.小灯泡的功率增大 D.电路的路端电压降](/uploads/image/z/9631568-56-8.jpg?t=%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2CR1%E3%80%81R2%E4%B8%BA%E5%AE%9A%E5%80%BC%E7%94%B5%E9%98%BB%2CL%E4%B8%BA%E5%B0%8F%E7%81%AF%E6%B3%A1%2CR3%E4%B8%BA%E5%85%89%E6%95%8F%E7%94%B5%E9%98%BB%2C%E5%BD%93%E7%85%A7%E5%B0%84%E5%85%89%E5%BC%BA%E5%BA%A6%E5%A2%9E%E5%A4%A7%E6%97%B6%28++++%29A.%E7%94%B5%E5%8E%8B%E8%A1%A8%E7%9A%84%E7%A4%BA%E6%95%B0%E5%A2%9E%E5%A4%A7++++++++++++++++++++++++++B.R2%E4%B8%AD%E7%94%B5%E6%B5%81%E5%87%8F%E5%B0%8FC.%E5%B0%8F%E7%81%AF%E6%B3%A1%E7%9A%84%E5%8A%9F%E7%8E%87%E5%A2%9E%E5%A4%A7++++++++++++++++++++++++++D.%E7%94%B5%E8%B7%AF%E7%9A%84%E8%B7%AF%E7%AB%AF%E7%94%B5%E5%8E%8B%E9%99%8D)
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