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 akmw plc,bkq di)4d 40) constant voltage circui0xdqncqow r(u 4.s,xerw d;v e92.7 emt is doubled, the power dissipated by that cirw , drqrsem2xu.n;ow vx 7(de4q.e09c cuit 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:
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