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A point charge .q. is placed at the cent...

A point charge .q. is placed at the centre of an uncharged conducting shell of inner radius R and outer radius 2R. If the point charge is removed from the centre of the shell, to infinity (without any electric contact with the shell). Work done by electric force is

A

`(q^(2))/(16piin_(0)R)`

B

`(-q^(2))/(8piin_(0)R)`

C

`(3q^(2))/(8piin_(0)R)`

D

`(-3q^(2))/(8piin_(0)R)`

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-ELECTROSTATICS-ADDITIONAL PRACTICE EXERCISE (LEVEL -II LECTURE SHEET (ADVANCED) STRAIGHT OBJECTIVE TYPE QUESTIONS)
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  15. Self energy of conducting sphere of radius .r. carrying charge .Q. is

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  16. Self energy of conducting sphere of radius .r. carrying charge .Q. is

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  19. The potential in certain region is given as V = 2x^(2), then the charg...

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