In the electric field of a point charge q,a certain charge is carried from point A to B, C,D and E. Then the work done:
Correct answer: B. Is zero along all the paths AB, AC, AD and AE
- A. Is least along the path AB
- B. Is zero along all the paths AB, AC, AD and AE
- C. Is least along AE
- D. Is least along the path AD
Explanation
Option B is correct as the charge is placed at point O and the dotted lines represent equipotential surface and work done in carrying a charge from one point to other on equipotential surface is zero.
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Electrostatics describes forces between charges through Coulomb's law, electric fields and field intensity, then uses electric potential to measure energy per unit charge. Capacitors store charge and electrical energy, with capacitance depending on geometry and dielectric material, not simply on the amount of charge present.
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