本题目来源于试卷: .Resistor.，类别为 美国物理杯赛(Physics Bowl)
[单选题]
06.33: A current through the thin filament w0 gsyylp (aj4-ire of a lightbulb rzn p bjgn s.3;by/8w9ff:g1l causes the filament to become white hot, while the larger wires con byszgfplf.r:n/g 93bnjw;18nected to the lightbulb remain much cooler. This happens because
A. the larger connecting wires have more resistance than the filament.
B. the thin filament has more resistance than the larger connecting wires.
C. the filament wire is not insulated.
D. the current in the filament is greater than that through the connecting wires.
E. the current in the filament is less than that through the connecting wires.
参考答案: B
本题详细解析:
暂无
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