Question

what is point charge and test charge?

Answer 1

Here is your answer mate..

Test charge: Any charge whose magnitude is very small, in fact negligible, as compared to that of the point charge, and which does not affect the electric field of the point charge, whose magnitude is to be found out, is called test charge.

Point charge: Any charge whether positive or negative, whose electric field is to be found at a particular distance(point) is called point charge...

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