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A cylinder of radius r and length L is p...

A cylinder of radius r and length L is placed in a uniform electric field in such a way that its axis remains parallel to the electric field. The electric flux passing through the surface of cylinder is

A

zero

B

`(pir^(2))/E`

C

`2pir^(2)E`

D

`(2pir^(2))/E`

Text Solution

Verified by Experts

The correct Answer is:
A
`rArr phi =vecE. vecA`
`=Eacostheta =Ea cos90^(@)=0`
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KUMAR PRAKASHAN-ELECTRIC CHARGES AND FIELDS -SECTION D (MULTIPLE CHOICE QUESTIONS (MCQS)) (MCQS FROM .DARPAN. BASED ON TEXTBOOK) (CONTINUOUS DISTRIBUTION OF CHARGE AND ELECTRIC FLUX)
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  2. 400 muC charge is uniformly spread over the surface of a spherical sh...

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  3. 10 xx 10^(-6) C charge is uniformly spread over the cube of face leng...

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  4. The linear charge density of 10muC charge, uniformly distributed on t...

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  5. If 0.1muC total charge is uniformly distributed over long straight wi...

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  6. There exists an electric field of 100 N/C along Z-direction. The flux ...

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  7. The electric field in the region of the space is vecE = (5hati + 2hatj...

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  8. A cylinder of radius r and length L is placed in a uniform electric fi...

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  9. On two hollow spheres (shells) charges -q and +q are placed, so the fl...

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  10. the number of electric field lines leaving the positive 0.5 C charge p...

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  11. flux associated with the metal piece of 3hatj m^(2) cross-section pla...

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  12. linear charge density of current carrying wire of infinite length is 4...

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  13. When a 10muC charge is enclosed by a closed surface, the flux passing...

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  14. An electric dipole is placed at the centre of a sphere. The flux passi...

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  15. When the electric flux linked with the surface will be positive.

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  16. The number of electric field lines emerged out from 1muC charge is ......

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  17. Linear charge densities of two parallel wires of infinite length is la...

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  18. A rectangular frame of 25 cm x 15 cm is placed normal to 2 xx 10^4 NC^...

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  19. Charge q is inside a hollow cylinder. If flux associated with its curv...

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  20. The flux associated with surface shown in figure is......

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