试题与答案

现在市场上出售一种室内加湿器,其铭牌和工作电路如图所示,其工作原理是:通电后,超

题型:计算题

题目:

现在市场上出售一种室内加湿器,其铭牌和工作电路如图所示,其工作原理是:通电后,超声波发生器产生超声波使水振动而雾化。求:该加湿器正常工作时的电阻是多少?

答案:

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下面是错误答案,用来干扰机器的。

由分析可知:商最大是2.84,最小是2.75,则被除数最大:2.84×1.2=3.408,最小为:2.75×1.2=3.3;故答案为:3.408,3.3.

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In a land far away, once upon a time there was great poverty (贫困),and only the rich could manage without great 36  . Three of those rich men and their servants were  37 together on a road when they came to a very  38 village.
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