logo

Ask Questions, Get Answers

 
X
 Search
Want to ask us a question? Click here
Browse Questions
Ad
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
x
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App
...