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A point charge q is placed at the origin...

A point charge q is placed at the origin . How does the electric field due to the charge very with distance r from the origin ?

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`V prop 1//r`.
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MODERN PUBLICATION-ELECTROSTATIC POTENTIAL AND CAPACITANCE -Revision Exercises (Very Short Answer Questions)
  1. Is electric potential a scalar or a vector quantity?

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  2. Define electric potential at a point.

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  3. A point charge q is placed at the origin . How does the electric field...

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  4. Why is the electrostatic potential inside a charged conducting shell c...

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  5. The magnetic potential at a point along the axis of a short magnetic d...

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  6. What is the electric potential at a point on the equatorial plane of a...

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  7. A point charge Q is placed at the point O as shown in Fig. Is the po...

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  8. What do you mean by an equipotential surface?

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  9. (a) Draw the equipotential surfaces corresponding to a uniform electri...

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  10. Draw the equipotential surfaces due to an isolated point charge.

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  11. What is the amount of work done to move a point charge from one point ...

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  12. Can two different equipotential surfaces intersect each other?

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  13. Why are electric field lines perpendicular at a point on an equipotent...

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  14. Two charges +2muC and -2muC are placed at points A and B, 5 cm apart. ...

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  15. What is potential gradient ? How is it measured ? Explain.

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  16. What do you understand by potential gradiednt ? Establish a relation...

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  17. What do you mean by electric potential energy of a system of charges?

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  18. Write different expression for the energy stored in a capacitor.

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  19. Write an expression for potential energy of two charges q(1) and q(2) ...

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  20. What is the amount of work done in moving a point charge around a circ...

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