本题目来源于试卷: Physics Unit19: DC Circuits，类别为 国际高中通用物理
[单选题]
An unknown resistor is wired in serit prhfr .5t nha8f(4c9vzh .8fes with an ammeter, and a voltmeter is plad z;)3rpa;v5m .kxye rced in parallel across both the resistor and the ammeter. Thi;r;.pyvr d5 k am)x3ezs network is then placed across a battery. If one computes the value of the resistance by dividing the voltmeter reading by the ammeter reading, the value 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: B
本题详细解析:
暂无
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