某一个电饭锅,内部电路如图所示,R1是加热电阻,阻值为48.4欧;R2是限流电阻,阻值为4某一电饭锅,内部电路如图所示.R1是加热电阻,阻值为48.4Ω;R2是限流电阻,阻值为484Ω.煮饭时,接通电源(220V 50Hz)
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![某一个电饭锅,内部电路如图所示,R1是加热电阻,阻值为48.4欧;R2是限流电阻,阻值为4某一电饭锅,内部电路如图所示.R1是加热电阻,阻值为48.4Ω;R2是限流电阻,阻值为484Ω.煮饭时,接通电源(220V 50Hz)](/uploads/image/z/798476-68-6.jpg?t=%E6%9F%90%E4%B8%80%E4%B8%AA%E7%94%B5%E9%A5%AD%E9%94%85%2C%E5%86%85%E9%83%A8%E7%94%B5%E8%B7%AF%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2CR1%E6%98%AF%E5%8A%A0%E7%83%AD%E7%94%B5%E9%98%BB%2C%E9%98%BB%E5%80%BC%E4%B8%BA48.4%E6%AC%A7%3BR2%E6%98%AF%E9%99%90%E6%B5%81%E7%94%B5%E9%98%BB%2C%E9%98%BB%E5%80%BC%E4%B8%BA4%E6%9F%90%E4%B8%80%E7%94%B5%E9%A5%AD%E9%94%85%2C%E5%86%85%E9%83%A8%E7%94%B5%E8%B7%AF%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA.R1%E6%98%AF%E5%8A%A0%E7%83%AD%E7%94%B5%E9%98%BB%2C%E9%98%BB%E5%80%BC%E4%B8%BA48.4%CE%A9%EF%BC%9BR2%E6%98%AF%E9%99%90%E6%B5%81%E7%94%B5%E9%98%BB%2C%E9%98%BB%E5%80%BC%E4%B8%BA484%CE%A9.%E7%85%AE%E9%A5%AD%E6%97%B6%2C%E6%8E%A5%E9%80%9A%E7%94%B5%E6%BA%90%28220V+50Hz%29)
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