本题目来源于试卷: Physics Unit18: Electric Currents，类别为 通用国际物理
[单选题]
If the resistance in a constant voltage circuit bc62 jotw *lk:io/tv5 is doublcz4b1,r/ 3 ys aiihm9-pn*qwg ed, the power dissipated by t-i/bsr ,9 1yzpa4qi3mw gnc*hhat circuit will
A. increase by a factor of two.
B. increase by a factor of four.
C. decrease to one-half its original value.
D. decrease to one-fourth its original value.
参考答案: C
本题详细解析:
暂无
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