Find the potential energy of a system of four particles each of mass m place at the vertices of a square fo side l. Also obtain the potential at the centre of the square.

Find the potential energy of a system of four particles each of mass m placed at the vertices of a square of side I .

The potential energy of a body of mass 'm' placed at a height h is

The length of a side of a square is 4 cm.A circle is drawn through the four vertices of the square.Find the area of the portions between the circle and the square.

Three charges, each equal to 16 * 10^-9 C are placed at the three corners of a square of side 4 cm. Find the electric field at fourth corner.

In the above diagram, a particle of mass"m" and charge(-q) initially moving along X-axis with velocity "v". The length of the plave system is "L" and uniform electric filed between the plates is "E". What is the vertical deflext of the particle at the far edge of the plate?

Find the least number which must be subtracted from each of the following numbers so as to get a perfect square. Also find the square root of the perfect square so obtained. 402

Find the least number which must be subtracted from each of the following numbers so as to get a perfect square. Also find the square root of the perfect square so obtained. 1989