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Define dielectric constant....

Define dielectric constant.

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Dielectric constant of a medium is defined as the ratiio of absolute dielectric permitivity of a medium to that of a free space.
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Explain dielectric constant with expressions .

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A parallel capacitor collects a charge of 3muC when connected to a 1.5 V battery with air as dielectric. On replacing the air with a dielectric material the capacitor collects 9muC of charge. Find the dielectric constant of the material and also the energy stored in it with the material as dielectric.

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SUBHASH PUBLICATION-ELECTROSTATIC POTENTIAL AND CAPACITANCE -NUMERICALS WITH SOLUTIONS
  1. Define dielectric constant.

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  2. A spherical hollow conductor is charged to -250V. If the radius of the...

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  3. Three point charges +10nC,-15nC and +20nC are placed at the corners A,...

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  4. Calculate the amount of work done by a uniform electric field of 200 V...

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  5. Calculate the number of electrons to be transferred from a material bo...

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  6. The effective capacitances of two condensers are 3muF and 16muF, when ...

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  7. A parallel plate capacitor consists of two circular plates of radius 0...

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  8. When two capacitors are connected in series across a 2kV line, the ene...

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  9. Two capacitors 3muF and 5muF are charged to 18V and 25V respectively. ...

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  10. Two capacitors 1muF and 3muF are charged individually to voltages of 1...

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  11. Three concentric metallic spheres A, B and C of radii 1m, 2m and 3m re...

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  12. A parallel capacitor collects a charge of 3muC when connected to a 1.5...

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  13. You are provided with 3 capacitors, each capacitance 2muF. In how many...

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  14. Two charges 5xx10^(-8)C and -3xx10^(-8)C are located 0.16 m apart. At ...

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  15. A spherical conductor of radius 0.12 m has a charge of 1.6xx10^(-7)C d...

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  16. A parallel plate capacitor with only air between the plates has a capa...

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  17. Three capacitors each of capacitance 9pF are connected in series. (a...

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  18. Obtain the equivalent capacitance of the netwrok in the figure given b...

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  19. A parallel plate capacitor is to be designed with a voltage rating 1kV...

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  20. A molecule of a substance has a permanent electric moment of magnitude...

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  21. The area of a parallel plate capacitor is 6xx10^(-3)m^(2). The distanc...

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