Electrostatic Potential and Capacitance - Result Question 16
18. As per the diagram, a point charge is placed at the origin . Work done in taking another point charge from the point [coordinates to another point [coordinates along the straight path is:
[2005]
(a) zero
(b)
(c)
(d)
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Answer:
Correct Answer: 18. (a)
Solution:
- (a) We know that potential energy of two charge system is given by
and
We know that for conservative force,