某电路中的电流大约为0.4 A,一同学要准确测量这个电流值,他选用

某电路中的电流大约为0.4 A,一同学要准确测量这个电流值,他选用的电流表有两个量程:0 ~ 0.6 A和0 ~ 3 A。他选用了0 ~ 3 A的量程来测量,则他的测量结果是
(A)测不出电路中的电流值              (B)电流表的指针可能被打弯
(C)电流表可能被烧坏                 (D)测量的电流值精确程度差一些

答案

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 【答案】D解析:

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