一题关于物理电压的题.三个完全相同的灯泡串联在电路中,S闭合时,V1的示数为24V,V2的示数也为24V,那么电源电压为( )A.24V B.48V C.12V D.36V顺便写出电路中电压的公式.
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![一题关于物理电压的题.三个完全相同的灯泡串联在电路中,S闭合时,V1的示数为24V,V2的示数也为24V,那么电源电压为( )A.24V B.48V C.12V D.36V顺便写出电路中电压的公式.](/uploads/image/z/6539549-5-9.jpg?t=%E4%B8%80%E9%A2%98%E5%85%B3%E4%BA%8E%E7%89%A9%E7%90%86%E7%94%B5%E5%8E%8B%E7%9A%84%E9%A2%98.%E4%B8%89%E4%B8%AA%E5%AE%8C%E5%85%A8%E7%9B%B8%E5%90%8C%E7%9A%84%E7%81%AF%E6%B3%A1%E4%B8%B2%E8%81%94%E5%9C%A8%E7%94%B5%E8%B7%AF%E4%B8%AD%2CS%E9%97%AD%E5%90%88%E6%97%B6%2CV1%E7%9A%84%E7%A4%BA%E6%95%B0%E4%B8%BA24V%2CV2%E7%9A%84%E7%A4%BA%E6%95%B0%E4%B9%9F%E4%B8%BA24V%2C%E9%82%A3%E4%B9%88%E7%94%B5%E6%BA%90%E7%94%B5%E5%8E%8B%E4%B8%BA%EF%BC%88+%EF%BC%89A.24V+B.48V+C.12V+D.36V%E9%A1%BA%E4%BE%BF%E5%86%99%E5%87%BA%E7%94%B5%E8%B7%AF%E4%B8%AD%E7%94%B5%E5%8E%8B%E7%9A%84%E5%85%AC%E5%BC%8F.)
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