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Two charges - q and + q are located at p...

Two charges - q and + q are located at points A(0, 0, - a) and B(0, 0, + a) respectively, work done in moving small test charge from point P(7, 0, 0) to Q(- 3, 0, 0) is ...... .

A

zero

B

`-3`J

C

4J

D

10J

Text Solution

Verified by Experts

P and Q points are on equator of dipole and potential at each point on equator of dipole is zero . Hence work is always zero.
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KUMAR PRAKASHAN-ELECTROSTATIC POTENTIAL AND CAPACITANCE-Section D ( Multiple Choice Questions (MCQs) )
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  2. The electric potential due to any point electric dipole varies as .......

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  3. Two charges - q and + q are located at points A(0, 0, - a) and B(0, 0,...

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  4. The dipole moment of a dipole is 4 xx 10^(-9) Cm. The po1ential of a p...

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  5. 10 muC charge Is placed on each vertex of equilateral triangle of 10 c...

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  6. For a point on the axis of the electric dipole theta = 0 and theta = p...

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  7. Potential energy of an electric dipole is minimum (Negatively maximum)...

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  8. When a n electric dipole is in st able equilibrium, in uniform electri...

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  9. A surface, value of electric potential on whichis same at all the poin...

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  10. Angle between equipotential surface and electric field is ......

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  11. A V - X graph for an electric field in X-direction is shown in the fig...

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  12. Uniformly polarised dielectric has ...... of induced charge.

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  13. C^(2)mN^(-1) is unit of ...... .

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  14. Value of dielectric constant of metal is.......

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  15. Which of the following atoms has permanent electric dipole moment zero...

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  16. Which of the following atoms behave as polar dielectric ?

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  17. The charge 3.0 xx 10^(-5) C are placed on a metal sphere of radius 3....

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  18. A parallel plate capacitor is charged and then isolated. Now a dielect...

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  19. A parallel plate capacitor is charged with a battery and then separate...

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