The electric field at the centroid of an equilateral triangle carrying an equal charge q at each of the vertices is :

The electric field at the centre of a square having equal charge q at each of the coner (side of square a )

A point charge +Q is placed at the centroid of an equilateral triangle. When a second charge +Q is placed at a vertex of the triangle, the magnitude of the electrostatic force on the central charge is 8 N. The magnitude of the net force on the central charge when a third charge +Q is placed at another vertex of the triangle is

Find the magnetic field at the centroid of an equilateral triangle of side 0.03 m and a current 2 A flowing through the sides of it.

A charge "q" is placed at the centroid of an equilateral triangle. Three charges having same "],[" charge equal to "Q" are placed at the vertices of the triangle.The system of four charges will be in equilibrium if "q" is equal to

Three paricles, each of mass m and carrying a charge q each, are suspended from a common pointby insulating massless strings each of length L. If the particles are in equilibrium and are located at the corners of an equilateral triangle of side a, calculate the charge q on each particle. Assume Lgtgta .

Three charges each of value q are placed at the corners of an equilateral triangle. A fourth charge Q is placed at the centre of the triangle. If Q = -q :

Three identical point charges, q, are placed at the vertices of an equilateral triangle as shown in the figure. The length of each side of the triangle is d. Determine the magnitude and direction of the total electrostatic force on the charge at the top of the triangle.

Three charges each of magnitude q are placed at the corners of an equilateral triangle, the electrostatic force on the charge place at the centre is (each side of triangle is L )

At each corner of an equilateral triangle identical charges are placed. Then at the centre of the triangle