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If a charge q is moving towards the cent...

If a charge q is moving towards the centre of an earthed conducting sphere of radius b with uniform velocity v. Distance of two points A and B from centre of sphere are 3a and 2a. Conducting sphere is earthed with an ammeter and resistance in series (as shown). b À B Α) Let at any instant point charge is at x distance from centre Q. Net charge on surface of conductor at this instant

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