Calculate the electric dipole moment of a system comprising of a charge + q distributed uniformly on a semicircular arc or radius R and a point charge – q kept at its centre.

The dipole moment of a system of charge +q distribyted uniformly on an arc of radius R subtending an angle pi //2 at its centre where another charge -q is placed is :

The dipole moment of a system of charge +q distribyted uniformly on an arc of radius R subtending an angle pi //2 at its centre where another charge -q is placed is :

The dipole moment of a system of charge +q distribyted uniformly on an arc of radius R subtending an angle pi //2 at its centre where another charge -q is placed is :

A positive charge Q is uniformly distributed along a circular ring of radius R .a small test charge q is placed at the centre of the ring.

A positive charge Q is uniformly distributed along a circular ring of radius R .a small test charge q is placed at the centre of the ring .The

A positive charge Q is uniformly distributed along a circular ring of radius R. A small test charge q is placed at the centre of the ring.

Find the electric field and potential at the centre of curvature of a uniformly charged semicircular rod of radius R with a total charge Q in SI. lambda is the linear charge density.

Find the electric field at the centre of a uniformly charged semicircular ring of radius R. Linear charge density is lamda

Find the electric field at the centre of a uniformly charged semicircular ring of radius R. Linear charge density is lamda

Calculate potential on the axis of a disc of radius R due to a charge Q uniformly distributed on its surface.