Asked by nikita

three equal and similar charges each of 'q' units are placed at the corners of the square of side 'a' .find the electric field strength at the fourth corner?
Answered by bobpursley
E=kq/r^2 and in the direction of r.

Add these as vectors. If you are careful, you can use symmetry to simplify it.

Here is a similar question on the symmetry issue. http://www.jiskha.com/display.cgi?id=1270726327
Answered by Anonymous
3000mm=____m?
Answered by roshan
Can you please Explain and Show the answer ?
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