挑战习题
1/5单选题
难度:

1.旧白炽灯在工作时,容易在灯丝最细处熔断,这是因为与相同长度的较粗灯丝相比,灯丝最细处(  )
A 功率最大
B 电流最大
C 电阻最小
D 电压最小
提示1:
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正确答案:QQ==
55S16Zi75LiO5qiq5oiq6Z2i56ev55qE57KX57uG5pyJ5YWz77yM5b2T6ZW/5bqm55u4562J77yM5p2Q5paZ55u45ZCM5pe277yM5qiq5oiq6Z2i56ev5bCP5pe277yM55S16Zi75aSn77yM5Zyo5ZCM5LiA5qC554Gv5Lid5Lit77yM5aSE5aSE55S15rWB55u4562J77yM5pe26Ze055u4562J77yM55Sx5a+85L2T5Y+R54Ot5YWs5byPUT1JPHN1cD4yPC9zdXA+UnTnn6XvvIznu4blpITnmoTnlLXpmLvlpKfvvIzlj5Hng63lpJrvvIzlip/njoflpKfvvI7mlYXpgIlB77yO