If potential energy is given by `U=(a)/(r^(2))-(b)/(r)`. Then find out maximum force. (ggiven `a=2,b=4)

If potential energy is given by U=(a)/(r^(2))-(b)/(r) . Then find out maximum force. (given a=2,b=4)

Potential energy in a field is given by U=-A/(r^6)+B/(r^11) then find the value of r for equilibrium position.

Potential energy in a field is given by U=-A/(r^6)+B/(r^11) then find the value of r for equilibrium position.

The potential energy function of a particle is given by U(r)=A/(2r^(2))-B/(3r) , where A and B are constant and r is the radial distance from the centre of the force. Choose the correct option (s)

The potential energy function of a particle is given by U(r)=A/(2r^(2))-B/(3r) , where A and B are constant and r is the radial distance from the centre of the force. Choose the correct option (s)