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根据题目中提供的现象,找出电路中的故障类型的题,是近年来考试中新出现的一类试题,很多同学颇感棘手。本文通过两道例题,对解答这类题的思维方法做一介绍,以期能对同学们有所裨益。 例1.一学生选好安培表和伏特表的量程,按图所示的电路图接好电路后,闭合电键安培表几乎未动,而伏特表指针有明显偏转,因此分析该电路的故障可能是( )。
According to the phenomenon provided in the title, finding out the type of fault in the circuit is a new type of test in recent years. Many students are very troublesome. This article introduces two examples of examples to explain the thinking methods of answering such questions in order to benefit the students. Example 1. A student selects the range of the ammeter and voltmeter. After the circuit is connected according to the circuit diagram shown in the figure, the closed amperage meter is almost unmoved, and the voltmeter pointer is clearly deflected. Therefore, it may be possible to analyze the malfunction of the circuit. ().