The gravitational potential at the centre of a square of side a when four point masses m each are kept at its vertices will be

The gravitational potential energy of a system of three particles of mass m each kept at the vertices of equilateral triangle of side x will be

The gravitational potential energy of a system of three particles of mass m each kept at the vertices of equilateral triangle of side x will be

Find the electric field and potential at the centre of a square of side d = 10 cm. Four identical charges of q=2muC each are kept at the four corners of a square.

Find the electric field and potential at the centre of a square of side d = 10 cm. Four identical charges of q=2muC each are kept at the four corners of a square.

Find the gravitational potential energy of a system of four particles, each of mass m placed at the verticles of a square of side l . Also obtain the gravitaitonal potential at centre of the square.

Find the gravitational potential energy of a system of four particles, each of mass m placed at the verticles of a square of side l . Also obtain the gravitaitonal potential at centre of the square.

Find the gravitational potential energy of a system of four particles, each of mass m placed at the verticles of a square of side l . Also obtain the gravitaitonal potential at centre of the square.

If four different masses m_1, m_2,m_3 and m_4 are placed at the four corners of a square of side a , the resultant gravitational force on a mass m kept at the centre is