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10 xx 10^(-6) C charge is uniformly spr...

`10 xx 10^(-6)` C charge is uniformly spread over the cube of face length 1 mm. The density of charge will be .........`Cm^-3`

A

`10^(-4)`

B

`10^(4)`

C

`10^(-1)`

D

10

Text Solution

Verified by Experts

The correct Answer is:
B
`rArr rho = Q/V = Q/(l)^(3) = 10^(-5)/(10^(-3))^(3) = 10^(-5)/10^(-9)`
`=10^(4)Cm^(-3)`
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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)
  1. If a charge q is placed at centre of cube, then flux associated with e...

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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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