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Draw a graph for variation of potential V with distance r for a point charge Q. |
Answer» Solution : Electrostatic potential of a point CHARGE `V=(kQ)/(R)` and electric FIELD `E= (kQ)/(r^(2))` here kQ is constant `:. V PROP (1)/(r) ` and `E prop (1)/(r^(2))` Equation of electrostatic potential `V= (kQ)/(r)` shows that if Q is positive then at all POINTS electrostatic potential is positive and if Q is negative then at all points electrostatic potential is negative. |
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