Question

work done in removing the charge

Answer 1

I understand your question very well. Rephrasing mine: how do you choose your unit distance? Does it depend on your choice of units? What if there are charges located at a position one unit distance away? Check Eq.(4.2.16) of here: web.mit.edu/viz/EM/visualizations/coursenotes/modules/… Can you define work done from infinity in this case?

Answer 2

Answer:

3 is correct answer

Explanation:

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