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If a charge is moved against the coulomb...

If a charge is moved against the coulomb force of an electric field.

A

a) work is done by the electric field

B

b) energy is used from some outside source

C

c) the strength of the field is decreased

D

d) The energy of the system is decreased

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The correct Answer is:
A, C, D
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FULL MARKS-ELECTROSTATICS -ADDITIONAL QUESTIONS SOLVED ( Multiple choice questions : )
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  2. The workdone in moving a positve charge on an equipotenial surface is

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  3. If a charge is moved against the coulomb force of an electric field.

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  4. No current flows between two charged particles when connected if the...

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  5. Electric field lines about a negative point charge are

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  6. Two plates are 1 cm aprt and the potential difference between them is ...

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  7. At a large distance (r), the electric field due to a dipole varies as

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  8. Two thin infinite parallel plates have uniform charge densities + sigm...

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  9. Two isolated, charged coducting spheres of radii R(1) and R(2) produce...

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  10. A 100 muF capacitor is to have an energy content of 50 J in order to o...

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  11. A 1 muF capacitor is placed n parallel with a 2 mu F capacitor across...

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  12. A parallel plate capacitor of capacitance 100 mu F Is charged to 500 V...

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  13. A point charge q is placed at the midpoint of a cube of side L. The el...

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  14. The capacitor C of a spherical conductor of radius R is proportional t...

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  15. Energy of a capacitor of capacitance C, when subjected to a pontential...

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  16. The electric field due to a dipole at a distnce r from its centre is p...

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  17. The work done in carrying a charge 'a' once round a circle of radius '...

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  18. The workdone in rotating an electric dipole of moment P in an electric...

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  19. Capacitance of a parallel plate capacitor can be increased by

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  20. Two charges are placed in vacuum at a distance d apart. The force betw...

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