8.The diagram shows a part of uniformly charged disc of radius R having surface charge density sigma .If electric potential at the center 0 is (1)/(N)times(sigma R)/(2 varepsilon_(0)) Then find N .

The diagram shows a part of uniformly charged disc of radius R having surface charge densityo. If electric potential at the center O is Then find N. 1 N Х OR 280 R R/2

The diagram shows a part of disc of radius R carrying uniformly distributed charge of density sigma . Electric potential at the centre O of parent disc is

A uniform disc of radius R is charged with a uniform surface charge density sigma . Find the electric potential due to the charges on the disc at a point on its edge. [(sigmaR)/(piin_(0))]

A sphere of radius R has a charge density sigma . The electric intensity at a point at a distance r from its centre is

Two charged spheres of radii R_(1) and R_(2) having equal surface charge density. The ratio of their potential is

Derive the expression of electric field intensity at a point 'P' which is situated at a distance x on the axis of uniformly charges disc of radius R and surface charge density sigma . Also, derive results for (i) x gt gt R (ii) x lt lt R

Two concentric spheres kept in air have radii R and r. They have similar charge and equal surface charge density sigma . The electrical potential at their common centre is (where, epsi_(0) = permittivity of free space)

A uniformly charged disc of radius r and having charge q rotates with constant angular velocity omega . The magnetic dipole moment of this disc is (1)/(n)qomegar^(2) . Find the value of n.

A thick shell with inner radius R and outer radius 3R has a uniform charge density rho.It has a spherical cavity of radius R as shown in figure.The electric field at the centre of the cavity is (n rho R)/(12 varepsilon_(0)) . Find n.

A uniformly charged disc of radius R having surface charge density sigma is placed in the xy plane with its center at the origin. Find the electric field intensity along the z-axis at a distance Z from origin :