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Two point charges +3 muC and +8 muC re...

Two point charges `+3 muC` and `+8 muC` repel each other with a force of 40 N. if a charge of `-5 ` is added to each of them, then the force between them will become

A

`-10 N`

B

`+10 N`

C

`+20 N`

D

`-20 N`

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TARGET PUBLICATION-ELECTROSTATICS-EXCERCISE
  1. Two fixed point charges +4q and +q units are separeted by a distance '...

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  2. Two positive points charges are 3 m apart and their combined charge is...

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  3. Two point charges +3 muC and +8 muC repel each other with a force of...

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  4. Two equally charged, identical metal spheres A and B rpepel each other...

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  6. Three charges 4q, Q and q are in a straight line in the position 0, l/...

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  7. Two small spheres each having the charge +Q are suspende by insulating...

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  9. Electric charges of 1muC, -1muC and 2muC are placed in air at the corn...

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  10. A charge q is placed at the centre of the line joining two equal charg...

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  11. Equalc harges q are placed at four corners A, B, C and D of a square o...

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  14. What is the magnitude of a point charge due to which the electric fiel...

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  15. The distance between the two charges 25 muC and 36 muC is 11 cm. at wh...

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  16. Two equal charges q are placed at the vertices A and B of an equilater...

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  17. Which among the curves shown in figure below can possibly represent el...

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  18. A conducting sphere of radius R= 20 cm is given a charge Q= 16 mu C. W...

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  19. Charges q, 2q, 3q, 4q are placed at the corners A, B, C and D of a squ...

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  20. The insulation property of air breaks down at E=3xx10^6 '(vo l t)/(met...

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