An electron having charge e located at A, in the presence of a point charge +q located at O, is moved to the point B such that OAB forms an equilateral triangle the work done in the process is equal to

A charge (-q) and another charge (Q) are kept at two points A and B respectively. Keeping the charge (+Q) fixed at B , the charge (-q) at A is moved to another point C such that ABC forms an equilateral triangle of side l . The net work done in moving teh charge (-q) is

A charge (-q) and another charge (Q) are kept at two points A and B respectively. Keeping the charge (+Q) fixed at B , the charge (-q) at A is moved to another point C such that ABC forms an equilateral triangle of side l . The net work done in moving teh charge (-q) is

A charge (-q)and anther charge (+Q) are kept at two point A and B respectively, keeping the charge (+Q) fixed at B, the charge (-q)at A is moved to another points C,such that ABC forms an equilateral triangle of side l. The net work done in moving the charge(-q) is

In the electric field of a point charge q, a certain charge is carried from point A to B, A to C,A to D and A to E. Then the work done

A positive point charge q is carried from a point B to a point A in the electric field of a point charge +Q at O. If the permittivity of free space is epsi_0 , the work done in the process is given by (where a = OA and b = OB ) -

Three charges 2q, -q, and -q are located at the vertices of an equilateral triangle. At the center of the triangle,

Three charges 2q, -q, and -q are located at the vertices of an equilateral triangle. At the center of the triangle,