"(a) Using Gauss\'s law, derive an expression for the electric field intensity at any point outside
Channel: Doubtnut
Date: 2020-01-03

"(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"