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空气断路器(英文名称:air circuit-breaker),又名空气开关,是断路器的一种.其作用相当于保险丝,即当电路中电流过大时自动切断电路从而保护电路的安全.如图所示是空气开关的工作原理图.请根据图示及其工作过程,简要说明其工作原理或现象原因.A.当用电器总功率太大时,电路中电流变得很大B.电磁铁工作,将衔铁吸引下来C...
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