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An electron is placed at the centre of a...

An electron is placed at the centre of a Conducting sphere of radius `0.2` metre having a charge `5xx10^(-2)` coulomb.The force on the electron is

A

zero

B

`11xx10^(9)N`

C

`22.5xx10^(9)N`

D

`2.5xx10^(9)N`

Text Solution

Verified by Experts

The correct Answer is:
A
`E_("inside")=0,F=Eq`
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NARAYNA-ELECTRIC CHARGES AND FIELDS-EXERCISE -1 (H.W)
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  9. A charged spherical conductor has a surface charge density of 0.7C//m^...

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  10. The electric field in a region of space is given by E = (5 hat(i) + 2h...

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  11. Number of electric lines of force emerging from 1C of positive charge ...

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  12. A charge of 5C is placed at the center of a spherical gaussian surface...

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  13. In a region where intensity of electric field is 5NC^(-1)40 lines of e...

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  14. An electron is placed at the centre of a Conducting sphere of radius 0...

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  15. Eight charges, 1muC, -7muC , -4muC, 10muC, 2muC, -5muC, -3muC, and 6mu...

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  16. Calculate the net flux emergin from given enclosed surface Nm^(2)C^(-1...

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  17. A charge q is located at the centre of a cube. The electric flux throu...

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  18. The electric field near a conducting surface having a uniform surface ...

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  19. A cylinder of length L and radius b has its axis coincident with the x...

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  20. A charge q is placed at the centre of the open end of a cylindrical ve...

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