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A charge Q is divided into two charge q ...

A charge Q is divided into two charge q and Q-q. The value of q such that the force between them is maximum is

A

Q/3

B

Q/2

C

Q/4

D

3Q/4

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-ELECTRIC CHARGES AND FIELDS-Practice Exercise
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  4. The ratio of the forces between two charges placed at a certain distan...

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  6. Two small balls having equal positive charge Q (coulumb) on each suspe...

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  7. The force between two charges 4C and -2C which are separated by a dist...

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  8. Two charges 9 mu C and 1mu C are placed at a distance of 30cm. The pos...

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  9. Three point charges Q(1), Q(2) and Q(3) in that order are placed equal...

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  10. A long solenoid having n = 200 turns per metre has a circular cross-se...

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  12. A charge of mass .m. charge .2e. is released from rest in a uniform el...

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  13. A charge q = -2.0 muC is placed at origin. Find the electric field at ...

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  14. Two point charges +8q and -2q are located at x=0 and x=L respectively....

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  15. A hollow spherical conductor of radius 1m has a charge of 250mu C then...

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  16. Two point charges q(A)= 3mu C and q(B) = - 3muC are located 20cm apart...

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  17. The displacement bar(r ) of a charge Q in an electric field E= e(1) ha...

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  18. A solid sphere of radius 2.45m is rotating with an angular speed of 10...

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  19. A 0.50 gm ball carries a charge of magnitude 10mu C. It is suspended b...

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  20. Two equal and opposite charges of magnitude 0.2 mu C are 15 cm apart, ...

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