Ask Questions, Get Answers

Want to ask us a question? Click here
Browse Questions
0 votes

Four charges are arranged at the corners of a square ABCD of side d, as shown in Figure .A charge $q_0$ is brought to the centre E of the square, the four charges being held fixed at its corners. How much extra work is needed to do this?

Can you answer this question?

1 Answer

0 votes
The extra work necessary to bring a charge q0 to the point E when the four charges are at A, B, C and D is $q_0$ × (electrostatic potential at E due to the charges at A, B, C and D). The electrostatic potential at E is clearly zero since potential due to A and C is cancelled by that due to B and D. Hence no work is required to bring any charge to point E.
answered Jun 11, 2014 by meena.p

Related questions

Ask Question
student study plans
JEE MAIN, CBSE, AIPMT Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App