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Introductory Physics Homework Help
Potential at a point multiple choice question ( aqa)
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[QUOTE="bonbon22, post: 6177825, member: 660327"] [B]Homework Statement:[/B] [URL]https://filestore.aqa.org.uk/sample-papers-and-mark-schemes/2018/june/AQA-74082-QP-JUN18.PDF[/URL] question 22 on the multiple choice near the end [B]Relevant Equations:[/B] no equations I understand how they arrived at the answer of 2Q , but i have a couple of questions on this. If one of the charges were negative for example how would the resultant potential be found then? at the middle point would i add the positive charges and subtracted the negative ? Also what would the potential be at for the corner , for example the bottom left corner assuming the charges were Q, Q, Q , 2Q? [/QUOTE]
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Potential at a point multiple choice question ( aqa)
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