Why is repulsion surer test for electrification of bodies ?
Kindly refer to the link given below to get your answer :
https://www.meritnation.com/ask-answer/question/explain-why-repulsion-is-the-surer-test-for-electrification/electric-charges-and-fields/2295179
https://www.meritnation.com/ask-answer/question/explain-why-repulsion-is-the-surer-test-for-electrification/electric-charges-and-fields/2295179