Three equal charges, each `+q ` are placed on the corners of an equilatreal triangel . The electric field intensity at the centroid of the triangle is

Five equal charges each of value q are placed at the corners of a regular pentagon of side a. The electric field at the centre of the pentagon is

Five equal charges each of value q are placed at the corners of a regular pentagon of side a. The electric field at the centre of the pentagon is

Three point 10muC each are placed at the corner of an equilateral triangle of side 5 cm. Calculate the resultant electric field intensity at the centroid of the triangle.

In vacuum, equal charges of the same nature are placed at the vertices of an equilateral triangle. What will be the electric field intensity and potential at the centroid of the triangle?

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 charges, each of value q, are placed at the corners of an equilateral triangle. A fourth charge Q is placed at the centre O of the triangle. (a) If Q = -q , will the charges at corners starts to move towards centre of away from it. (b) For what value of Q at O will the charges remain stationary ?

Four charges each of charge (+q) are placed at the corners of square of side (0.1 meter). The net electric field intensity at the centre of the square is

Six charges +q each are placed at the corners of a regular hexagon of each side a. The electric field at the centre of the hexagon is