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Two point charges repel each other with ...

Two point charges repel each other with a force of 100 N. one of the charges is increased by `10%` andother is reduced by `10%`. The new force of repulsion at the same distance would be

A

100 N

B

121 N

C

99 N

D

90 N

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TARGET PUBLICATION-ELECTROSTATICS-EXCERCISE
  1. Which of the following is NOT true about dielectric constant?

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  2. A charge Q is divide into two charges q and (Q-q). What should be thr ...

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  3. Two point charges repel each other with a force of 100 N. one of the c...

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  4. Two fixed point charges +4q and +q units are separeted by a distance '...

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

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

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

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  8. Two charges q1 and q2 repel each other with a force of 0.1 N. What wil...

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

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

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  11. ABC is a right angled triangle in which AB = 3cm and BC = 4cm and ang...

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

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

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

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  15. Infinite number of spheres, each of mass m are placed on the X-axis at...

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  16. The figure shows some of the electric field lines corresponding to an ...

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

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

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

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

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