Two loads q and 2g are d= 30 cm from a central point between them. The distance that we should put a third charge of -4q, so that the resulting electric potential,at this central point, whether null is:
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Two loads q and 2g are d= 30 cm from a central point between them. The distance that we should put a third charge of -4q, so that the resulting electric potential,at this central point, whether null is:
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