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Two charges are at distance (d) apart in...

Two charges are at distance (d) apart in air Coulomb force between them is F. If a dielectric material of dielectric constant (K) is placed between them, the coulomb force now becomes.

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The force between charges becomes F/K, where F is the force between charges when there is air medium between the charges.
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MODERN PUBLICATION-ELECTRIC CHARGES AND FIELDS -Revision Exercises (Very short)
  1. What is the Importance of expressing coulomb's law in vector from ?

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  2. Write the expression for Coulomb's law for force between two charged p...

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  3. Two charges are at distance (d) apart in air Coulomb force between the...

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  4. Define dielectric constant of a medium in terms of force between elect...

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  5. State Coulomb's law of electric force between two charged bodies.

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  6. Does Coulomb's law of electric force obey Newton's third law of mo...

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  7. What will be the electrical permittivity of medium whose dielectric co...

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  8. The dielectric constant of water is 80. What will be its electrical pe...

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  9. Why does the electric field inside a dielectric decrease when it is p...

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  10. Define linear charge density and write its SI units.

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  11. Two large conduction spheres carrying charges Q(1) and Q(2) are brough...

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  12. Define volume charge density and write its SI unit.

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  13. Why can the interior of a conductor have no excess charge in the stati...

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  14. Define electric dipole moment. Write its SI unit ?

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  15. Electric dipole moment is

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  16. Electric dipole moment is

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  17. An electric dipole of dipole moment vecp is placed in an electric fiel...

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  18. When an electric dipole is subjected to a uniform electric field, what...

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  19. If mass of the electron = 9.1 xx 10^(–31) Kg. Charge on the electron =...

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  20. Assertion : An electrostatic field line never form closed loop. Reas...

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