Question

Two point charges are located as shown below. One has charge +40 and located at (x, y)-(-a, 0). The other has charge-Q and located at (ta, 0). a) b) c) Find the potential Vat (x, y) (0, 0). (Assume V- 0 at infinitely-far-way places.) Find the potential V at point P-(0, +a). Find out the location (x, 0) where the potential V becomes zero in the x-axis. There is such a point other than infinitely-far-way places d) What is the total energy stored in this system (consisting of this pair of charges)? e) The third charge +Q is placed at P-(0,+a). What is the total energy stored in this system consisting of the three charges?
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2C a-一ーナ 오a ve C

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