STATEMENT-1: For practical purposes, the earth is used as a reference at zero potencial in electrical circuits. and
STATEMENT-2: The electrical potential of a sphere of radius R with charge Q uniformly distributed on the surface is given by `(Q)/(4piepsilon_0R)`.

statement 1 : For practical purposes, the earth is used as a reference at zero potencial in electrical circuits. statement 2 : The electrical potential of a sphere of radius R with charge Q uniformly distributed on the surface is given by (Q)/(4piepsilon_0R) .

Assertion : For practical purpose, the earth is used as a reference at zero potential in electrical circuits. Reason : The electrical potential of a sphere of radius R with charge Q uniform distributed on the surface is given by Q/(4pivarepsilon_0R) . Which one of the following statements is correct ?

Statement I : For practical purpose, the potential of the earth is used as a reference, and is assumed to be the zero of potential in electrical circuits. Statement II : The electrical potential ofa sphere of radius R, with charge Q uniformly distributed on its surface is given by Q/(4 pi epsilon_(0)R) .

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

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

Show that electric potential at a point P, at a distance .r. from a fixed point charge Q, is given by : V=(1/(4piepsilon_0))Q/r

STATEMENT -1 : Consider a conducting sphere of radius R . Now a charge q is placed in front of shphere . Electric potential at point O is (Kq)/r STATEMENT -2: Electric potential at the centre of sphere due to induced charges is zero.

A charge Q is distribution over a metal sphere of radius R. What is the electric field and electric potential at the centre ?