Find the electric field potentail and strength at the centre of a hemisphere fo raidus `R` ahcged uniformly with the the surface density `sigma`.

Find the electric field potential and strength at the center of a hemisphere of radius R charged uniformly with the the surface density sigma .

The magnitude of the electric field on the surface of a sphere of radius r having a uniform surface charge density sigma is

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

Calculate the magnetic field at distance y from the centre of the axis of a disc of radius r and unifrom surface charge density sigma , If the disc spins with angular velocity omega ?

A total charge of 5 muC is distributed uniformly on the surface of the thin walled semispherical cup. If the electric field strength at the centre of the hemisphere is 9xx10^(8) NC^(-1) , then the radius of the cup is (1/(4pi epsi_(0))=9xx10^(9) N-m^(2) C^(-2))

A point charge +q is placed at the centre of curvature of a hemisphere. Find flux through the hemispherical surface.

A charge 'Q' is placed at the centre of a hemispherical surface of radius 'R'. The flux of electric field due to charge 'Q' through the surface of hemisphere is

Find out the flux through the curved surface of a hemisphere of radius R if it is placed in a uniform electric field E as shown in figure

(a) Using Gauss's law, derive an expression for the electric field intensity at any point outside a uniformly charged thin spherical shell of radius R and charge density sigma C//m^(2) . Draw the field lines when the charge density of the sphere is (i) positive, (ii) negative. (b) A uniformly charged conducting sphere of 2.5 m in diameter has a surface charge density of 100 mu C//m^(2) . Calculate the (i) charge on the sphere (ii) total electric flux passing through the sphere.

A hollow insulating spherical shell has a surfac charge distribution placed upon it, such that the upper hemisphere has a uniform surface charge density sigma . While the lower hemisphere has a uniform surface charge density -sigma .as shown in the figure. Their interface lies in x-y plane which