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GCSE科学/电气多选练习题1
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摘自维基百科，面向开放世界的开放书籍
<
GCSE Science
一个水壶装有一个13A熔断器。下列哪条陈述是
正确的
?
熔断器的主要目的是，如果火线接触金属外壳，保护人员
熔断器将火线中的电流保持在13A
熔断器是一种特殊的电阻。它通过抵抗任何额外电流，将电流保持在13A以下
如果电流超过13A，熔断器会熔断，从而断开电路
类别
:
图书：GCSE科学
华夏公益教科书
