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The energy density of air medium is 44.2...

The energy density of air medium is `44.25xx10^(-8)J//m^(3)`. The intensity of the electric field in the medium is

A

`300 N//C`

B

`3 N//C`

C

`305 N//C`

D

`316.2 N//C`

Text Solution

Verified by Experts

The correct Answer is:
D
`u=1/2in_(0)kE^(2)`
`therefore" "E=sqrt((2u)/(in_(0)k))=sqrt((2xx44.25xx10^(-8))/(8.85xx10^(-12)xx1))=316.2N//C`
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NIKITA PUBLICATION-ELECTROSTATICS-Multiple Choice Questions
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  2. The energy per unit volume of a dielectric medium is directly proporti...

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  3. The energy density of air medium is 44.25xx10^(-8)J//m^(3). The intens...

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  4. The energy density of a medium of dielectric constant k surrounding th...

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  5. Calculate the energy per unit volume of a medium of dielectric constan...

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  9. A small sphere carries a charge of 20muC. The energy density of electr...

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  10. Due to polarisation the electric field inside a dielectric is

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  11. If the dielectric constant and dielectirc strength be denoted by K and...

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  12. A molecule in which centre of gravity of positive nuclei and revolving...

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  13. Polar molecules have permanent

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  14. Which of the following is example of polar molecule ?

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  15. A molecule in which centre of gravity of positive nuclei and revolving...

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  16. Non polar molecules have donot permanent

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  17. Which of the following is example of non polar molecule ?

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  18. The electric dipole moment per unit volume of electric dipole is

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  19. The ratio of polarisation to electric intensity is

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  20. The amount of induced surface charge per unit area of the surface is

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