Question

Four point charges at the corners of a square of side 2cm . Find the magnitude and direction of electric field at the centre o of the square of q=0.2 microcoulomb

Answer 1

Answer :- zero.

Explanation :- four equal charges are placed at the corners of square of side length 2cm . We have to find out electic field at the centre of square .

We know, square is symmetrical shape and also all the given charges are equal e.g., 0.02μC . So, electric at centre of square will be zero. Because opposite nature electic field will be balanced .

For better understanding you can see in figure.

Here, it is clearly shown that electric field at O = 0