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There are two identical spheres A and B....

There are two identical spheres A and B. Now charge Q is established on each sphere. There is a third identical neutral sphere C. Now sphere C is first brought in contact with A and separated then brought in contact with B and separated. After this what will be charge on C ?

A

Q

B

`Q/2`

C

`(3Q)/4`

D

`Q/4`

Text Solution

Verified by Experts

The correct Answer is:
C
Electric charge on A is Q, electric charge on B is
`Q/2`
Electric charge when they are brought in contact:
`=(Q + Q/2)/(2)`
`=(3Q)/4`
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KUMAR PRAKASHAN-ELECTRIC CHARGES AND FIELDS -SECTION D (MULTIPLE CHOICE QUESTIONS (MCQS)) (MCQS FROM .DARPAN. BASED ON TEXTBOOK) (ELECTROSTATIC ELECTRIC CHARGE AND FRICTIONAL ELECTRICAL CHARGE)
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  5. Charge on electrons having total mass of 75 kg is ......C.

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  7. Two copper spheres A and B have equal radii. If sphere A has 100 elect...

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  8. Net charge on object having 9 xx 10^13 protons and 6 xx 10^13 electron...

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  9. What will be the change in the radius of a soap bubble if it is given ...

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  10. To know the presence of charge on a substance......is used.

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  12. if a negatively charged rod is brought nearer to a neutral conducting ...

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  13. Coulomb's Law, Superposition Law Coulomb's law supports .......

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  14. There will be ...... between two like charge and......between two unli...

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  16. As shown in figure, four electric charges are placed on vertices of a ...

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  17. Value of Coulombian constant in CGS unit is

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  18. If Coulomb's law is represented by F=kq(1)q(2) r^(n) , then n = ......

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  19. Coulomb's law is correct for......distance.

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