本题目来源于试卷: DC Circuits，类别为 IB物理学
[问答题]
If two identical resistors k7kj3.cb m9s(vkjgtzn e:5d/ are connected in series to a b2 vb7x zxbda/o 5:2bcoattery, does the battery have to supply more power or less power than w2z2aoxv7b /b :x obc5dhen only one of the resistors is connected? Explain.
参考答案: The power supplied by the battery
is the product of the battery voltage times the total current flowing from the
battery. With the two resistors in
series, the current is half that with a single resistor. Thus the battery has to supply half the power
for the two series resistors than for the single resistor.
本题详细解析:
暂无
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