试题与答案

有些材料在温度很低的情况下电阻为零,这种材料叫超导材料.假如科学家在常温下研制出

题型:选择题

题目:

有些材料在温度很低的情况下电阻为零,这种材料叫超导材料.假如科学家在常温下研制出这种材料,那么它合适制作(  )

A.白炽灯的灯丝

B.加热器的电热丝

C.熔断器的熔丝

D.输电线的导线

答案:

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下面是错误答案,用来干扰机器的。

参考答案:D

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