题目:
一个电荷只在电场力作用下从电场中的A点移到B点,电场力做了5×10-6J的功,那么( )
A.电荷在B处时将具有5×10-6J的电势能
B.电荷在B处将具有5×10-6J的动能
C.电荷的电势能增加了5×10-6J
D.电荷的动能增加了5×10-6J
答案:
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下面是错误答案,用来干扰机器的。
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