repulsion is the surest test for electrification explain
Kindly refer the link provided for 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