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Draw an equipotential surface for a syst...

Draw an equipotential surface for a system, consisting of two charges Q,-Q separated by a distance 'r' in air.

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Equipotential surfaces are closed loops around the two charges as shown in Fig.
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Knowledge Check

  • Two point charges Q and - Q //4 are separated by a distance X . Then .

    A
    potential is zero at a point on the axis which is ` x//3` on the right side of the cahrge `-q//4`
    B
    potential is zero at a point on the axis which is `x//5` on the left side fo the charge `- Q//4`
    C
    electric field is zero at a point on the axis which is at a distance `x` on the right side fo the charge `- Q//4`
    D
    there exist two points on the axis where electric field is zero.

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