" A sphere of lead of mass "10g" has net charge "-2.5times10^(-9)C" ."

A sphere of lead of mass 10 g has net charge -25 xx 10^(-9)C . (i) Find the number of excess electrons on the sphere. (ii) How many excess electrons are per lead atom ? Atomic number of lead is 82 and its atomic mass is 207 g/mol.

A sphere of lead of mass 10 g has net charge -25 xx 10^(-9)C . (i) Find the number of excess electrons on the sphere. (ii) How many excess electrons are per lead atom ? Atomic number of lead is 82 and its atomic mass is 207 g/mol.

Excess electrons are placed on a small lead sphere of mass 6.90 g so that its net charge is -3.20 xx 10^(-9)C . Find the number of excess electorns ( in terms of xx 10^(10)) on the sphere.

Excess electrons are placed on a small lead sphere of mass 6.90 g so that its net charge is -3.20 xx 10^(-9)C . Find the number of excess electorns ( in terms of xx 10^(10)) on the sphere.

A hollow sphere of radius 0.1 m has a charge of 5 xx10^(-8) C . The potential at a distance of 5 cm from the centre of the sphere is (1/(4pi epsi_(0))=9xx10^(9) Nm^(2) C^(-2))

A hollow sphere of radius 0.1 m has a charge of 5 xx10^(-8) C . The potential at a distance of 5 cm from the centre of the sphere is (1/(4pi epsi_(0))=9xx10^(9) Nm^(2) C^(-2))

Two spheres of radii 1 cm and 2 cm have been charged with 1.5 xx 10^(-8) and 0.3 xx 10^(-7) coulomb of posiitve charge. When they are connected with a wire, charge :

A metallic sphere of radius 18 cm has been given a charge of 5xx10^(-6)C. The energy of the charged conductor is

A metallic sphere of radius 18 cm has been given a charge of 5xx10^(-6)C. The energy of the charged conductor is