" A charge of "10^(-10)C" is placed at the origin.The electric field at "(1,1)cm" due to it (in "NC^(-1)" ) is "

A point charge of 10mC is placed at origin.The value of electric potential at point(3, 4) m is

The electric potential on the surface of a sphere of radius R and charge 3xx10^(-6) C is 500 V The intensity of electric field on the surface of the sphere ( in NC^(-1)) is

The electric potential on the surface of a sphere of radius R due to a charge 3 xx 10^(-6)C is 500V. The intensity of electric field on the surface of the sphere is (NC^(-1)) is

A point charge q is placed at the origin . How does the electric field due to the charge very with distance r from the origin ?

A point charge of 10 mC is placed at origin.The value of electric potential at point (3, 4) m is.........

4xx10^(10) electrons are removed from a neutral metal sphere of diameter 20 cm placed in air. The magnitude of the electric field (in NC^(-1) ) at a distance of 20 cm from its centre is

A charge of 0.5 nC is placed at the centre of an equilateral triangle of side 10 cm, calculate the work done in bringing a charge of 0.1 nC from infinity to any vertices of the triangle.