A simple pendulum of mass m and charge +q is suspended vertically by a massless thread of length l. At the point of suspension, a point charge +q is also fixed. If the pendulum is displaced slightly from equilibrium position, its time period will be

A simple pendulum consists of a small sphere of mass m suspended by a thread of length l . the sphere carries a positive charge q . The pendulum is placed in a uniform electric field of strength E directed vertically upwards. With what period will pendulum oscillate if the electrostatic force acting on the sphere is less than the gravitational force ?

A simple pendulum consists of a small sphere of mass m suspended by a thread of length l . the sphere carries a positive charge q . The pendulum is placed in a uniform electric field of strength E directed vertically upwards. With what period will the pendulum oscillate if the electrostatic force acting on the sphere is less than the gravitational force?

A simple pendulum consists of a small sphere of mass m suspended by a thread of length l . the sphere carries a positive charge q . The pendulum is placed in a uniform electric field of strength E directed vertically upwards. With what period will pendulum oscillate if the electrostatic force acting on the sphere is less than the gravitational force ?

A small metallic bob of mass m of a simple pendulum of length L is suspended between the two oppositely charged large parallel plates . The electric field E act vertically. If positive charge 'q' is given to bob and displaced slightly from mean position then time period of oscillation will be

A small metallic bob of mass m of a simple pendulum of length L is suspended between the two oppositely charged large parallel plates . The electric field E act vertically. If positive charge 'q' is given to bob and displaced slightly from mean position then time period of oscillation will be

A simple pendulum of length l and mass (bob) m is suspended vertically. The string makes an angle theta with the vertical. The restoring force acting on the pendulum is