本题目来源于试卷: Physics Unit19: DC Circuits，类别为 通用国际物理
[单选题]
An unknown resistor is o8efh b,4wl*owired in series with an ammeter,1fz; m),azcst and a voltmeter is placed in parallel across the resistor only. This network is then connected to a battery. If one computes the value of the resistance by dividing the voltmeter reading by the ammeter reading, the vazfts1;mzac) ,lue obtained
A. is less than the true resistance.
B. is greater than the true resistance.
C. is the true resistance.
D. could be any of the given answers. It depends on other factors.
参考答案: A
本题详细解析:
暂无
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