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A system consists of two charges 4 mu C ...

A system consists of two charges `4 mu C and -3 muC` with no external field placed at `(-5 cm, 0,0) and (5 cm, 0,0)` respectively. The amount of work required to separated the two charges infinitely away from each other is

A

3J

B

2J

C

2.5J

D

`-1.1J`

Text Solution

Verified by Experts

The correct Answer is:
D
`V = (1)/(4pi in_(0)) (q_(1) q_(2))/(r )`
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NARAYNA-ELECTROSTATIC POTENTIAL AND CAPACITANCE-Exercise -1 (C.W)
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  3. A system consists of two charges 4 mu C and -3 muC with no external fi...

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  7. Two conducting spheres of radii r(1) and r(2) are equally charged. The...

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  8. A conducting sphere of radius R is charged to a potential of V volts. ...

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  9. A non conducting sphere of radius R is charged uniformly. At what dist...

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  10. Two charged spherical conductors of radii R(1) and R(2) when connected...

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  11. Consider two concentric spherical metal shells of radii r1" and "r2(r2...

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  13. The capacity of a parallel plate condenser consisting of two plates ea...

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  14. Sixty four spherical drops each of radius 2 cm and carrying 5 C charge...

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  15. A highly conducting sheet of aluminium foil of negligible thickness is...

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  16. Two metal plates are separated by a distance d in a parallel plate con...

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  17. A radio capacitor of variable capacitance is made of n parallel plates...

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  18. The radius of the circular plates of a parallel plate condenser is 'r'...

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  19. When two capacitors are joined in series the resultance capacity is 2....

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  20. Three condensers 1 mu F,2 mu F and 3 mu F are connected in series to a...

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