Five point charges, each having a charge q are placed on the five croners A,B,C, D and E of a regular hexagon ABCDEF having each side of length a. Find the electric field at the centre of the hexagon.

Three point charges, each having a charge +10 C are placed on the three cornes A, B and C of a square ABCD having each side of length sqrt8 m. Find the electric field at the centre of the square.

Four points charges, each having a charge q are placed on the four corners. A,B,C and D of a regular pentagon. ABCDF. The distance of eadch corner for the centre is a. Find the electric field at the centre of the pentagon.

Find the peimeter of a regular hexagon with each side measuring 8m.

Five charges, q each, are placed at the corners of a regular pentagon of side a as shown in the figure. What will be the electric field at O, the centre of the pentagon? What will be the electric field at O, fi the charge from one of the corners (Say A) is removed? What will be the electric field at O, if the charge q at A is repalced by - q?

A hexagon of side 0.1 m has a charge 10 mu C at each of its vertices. Calculate the electric potential at the centre of the hexagon.

Three charges, each equal to q, are placed at the three corners of a square of side a. Find the electric field at the fourth corner of the square.

Charges of +5muC, +10muC and -10muC are placed in air at the corners A,B and C of an equilateral triangle ABC, having each side equal to 5 cm. Determine the resultant force on the charge at A.

Four charges of +4,-3,+2 and +3 coulomb are placed at the corners of a square of each side 1m. Find the electric field at the centre of the square. Given = epsilon_0 = 8.85 xx 10^-12 C^2N^-1m^-2

A regular hexagon of side 10 cm has a charge 5 muC at each of its vertices. Calculate the potential at the centre of the hexagon.