本题目来源于试卷: .Resistor.，类别为 美国物理杯赛(Physics Bowl)
[单选题]
07.27: A junior Thomas Ediso tq,om:p,v0i l n wants avm*-g,tibx m) l.f4lto make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given voltage -l iva f m)4bg.l*m,xt?
A. Increase the resistivity only.
B. Increase the diameter only.
C. Decrease the diameter only.
D. Decrease the diameter and increase the resistivity.
E. Increase the length only.
参考答案: B
本题详细解析:
暂无
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