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A charge of 10 muC experience a force of...

A charge of `10 muC` experience a force of 5 N in an electric field. The potential gradient at that point is:

A

`0.4 NC^-1`

B

`4 xx10^5 NC^-1`

C

`2.5 xx10^-6NC^-1`

D

cannot be found

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