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 3q ,: 8qcwg)tdo-qumuu /x8ewa constant voltage circuit is ze00t, -rx tc1ir 0mcsral+2t doubled, the power dissipated by that circuit willze x100s0 a2tc r, mrlc+-irtt
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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