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 wire of a lightbu;mi 8x1r/vhys .i/z9hohag: klb causes the filam0l 4w 6iun5yuw z8pbw4/sdar3ent to become white hot, while the larger wires connected to the lightbulb remain much cooleriw a5wbur6l8pun/34 4zws y d0. 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
| 
