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overset (rarr) E and V near an isolated ...

`overset (rarr) E` and V near an isolated point charge vary with distance r respectively as

A

`(r)^(-1), (r)^(-1)`

B

`(r)^(-2), (r)^(-1)`

C

`(r)^(-2), (r)^(-2)`

D

`(r)^(-1), (r)^(-2)`

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