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下列说法正确的是 ( )

单选题
2021-09-01 23:34
A、电场强度为零的点,电势也一定为零
B、电场强度不为零的点,电势也一定不为零
C、电势为零的点,电场强度也一定为零
D、电势在某一区域内为常量,则电场强度在该区域内必定为零。
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正确答案
D

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