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(a) Two protons are placed at some separ...

(a) Two protons are placed at some separation in vacuum. Find the ratio of electric and gravitational force acting between them.
(b) Two point charges are placed at separation `3 m` in vacuum. What can be the minimum force between them.
(c ) A charge `Q` is to be divided on two objects. What should be the value of the charges in the objects so that the force between them is maximum ?
(d) Two insulating small spheres are rubbed against each other and placed `1.6 cm` apart. If they attract each other with a force of `0.9 N`, how many electrons were transferred from one sphere to the other during rubbing ?

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DC PANDEY-ELECTROSTATICS-Medical entrances gallery
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  5. A total charge of 5 muC is distributed uniformly on the surface of the...

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  9. A charge Q is uniformly distributed over a large plastic plate. The el...

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  11. The line A A' is on charged infinite conducting plane which is perpend...

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  13. Pick out the statement which is incorrect?

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  16. A uniform electric field exists in space. Find the flux of this field...

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  18. Two charge spheres separated at a distance d exert a force F on each o...

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  19. If a charge on the body is 1 nC, then how many electrons are present o...

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