本题目来源于试卷: Electric Currents，类别为 IB物理学
[问答题]
If the resistance of a small immersion heater (to heat water for tea or s38 5lipim ge2hyc.0 ceoup, jb7 7mum -)l*apvh t-hFig. 18–32) was increased, would it speed -7 p-v mt*7bmluhah)jup or slow down the heating process? Explain.
参考答案: We assume that the voltage is the
same in both cases. Then if the
resistance increases, the power delivered to the heater will decrease according
to $P\,=\,V^2R$.. If the power decreases, the
heating process will slow down.
本题详细解析:
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