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Two opposite and equal charges 4 xx 10^(...

Two opposite and equal charges `4 xx 10^(-8)` coulomb when placed `2 xx 10^(-2) cm` away, from a dipole. If dipole is placed in an external electric field `4 xx 10^(8)` newton//coulomb, the value of maximum torque and the work done in rotating it through `180^(@)` will be

A

`64xx10^(-4)Nm` and `64xx10^(-4)J`

B

`32xx10^(-4)Nm` and `32xx10^(-4)J`

C

`64xx10^(-4)Nm` and `32xx10^(-4)J`

D

`32xx10^(-4)Nm` and `64xx10^(-4)J`

Text Solution

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The correct Answer is:
D
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ERRORLESS -ELECTROSTATICS -Ordinary Thinking Objective Questions (Electric Dipole)
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  2. The electric field at a point on equatorial of a dipole and direction ...

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  3. Two opposite and equal charges 4 xx 10^(-8) coulomb when placed 2 xx 1...

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  4. If E(a) be the electric field strength of a short dipole at a point on...

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  6. A point Q lies on the perpendicular bisector of an electrical dipole ...

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  8. An electric dipole in a uniform electric field experiences (When it is...

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  9. The electric intensity due to a dipole of length 10 cm and having a ch...

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  10. Electric potential at any point in equatorial plane of a dipole is ...

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  12. The potential at a point due to an electric dipole will be maximum and...

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  13. The value of electric potential at any point due to any electric dipol...

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  14. An electric dipole has the magnitude of its charge as q and its dipole...

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  15. Intensity of an electric field (E) depends on distance r due to a dipo...

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  16. The ratio of electric fields on the axis and at equator of an electric...

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  17. For a dipole q= 2xx10^(-6)C and d= 0.01m. Calculate the maximum torque...

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  18. A molecule with a dipole moment p is placed in an electric field of st...

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  19. An electric dipole of moment vecp placed in a uniform electric field v...

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  20. The region surrounding a stationary electric dipole has

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