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Three concentric spherical conductors A, B, and C of radii r, 2R, and 4R, respectively. A and C is shorted and B is uniformly charged (charge +Q). Potential at A is |
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Answer» `Q/4piepsilon_0R`  `q_(1)+q_(2)=0` `v_(A)=(kq_(1))/(R)+(kQ)/(2R)+(kq_(2))/(4R)` `v_(C)=(kq_(1))/(4R)+(kQ)/(4R)+(kq_(2))/(4R)` `v_(A)=v_(C)` `q_(1)=-(Q)/(3)` and `q_(2)=(Q)/(3)` `v_(A)=K[(-Q)/(3R)+(Q)/(2R)+(Q)/(12R)]=(Q)/(12piepsilon_(0)R)]=(Q)/(16piepsilon_(0)R)` `v_(B)=k[(-Q)/(6R)+(Q)/(2R)+(Q)/(12R)]=(5Q)/(48piepsilon_(0)R)` |
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