Question

Two uniformly charged concentric hollow spheres of radii R and 2R are charged. The inner sphere has a
charge of lmuC and the outer sphere has a charge of 2 muC of the same sign. The potential is 9000 V at a
point P at a distance 3R from the common centre O. What is the value of R?
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Answer 1

there's your answer ...

Answer 2

Answer:

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