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Consider a region inside which there are...

Consider a region inside which there are various types of charges but the total charge is zero ,.At points outside the region

A

the electric field is necessarily zero.

B

the electric field is due to the dipole moment of the charge distribution only.

C

the dominant electric field is inversely proportional to r3, for large r (distance from the origin).

D

the work done to move a charged particle along a closed path, away from the region will not be zero.

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