What is NOT TRUE about Henry's electromagnet? -题库考试答案搜索网

What is NOT TRUE about Henry's electromagnet?

单选题

2022-11-03 19:06

A、His magnet could. hold 2，300 pounds.
B、His magnet was more dangerous.
C、There were more turns of wire around the iron rod in his magnet.
D、His magnet was an improved model.

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正确答案

B

试题解析

[解析] 通过阅读可知选项B文中未提及。

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