State and explain Kirchoff.s junction rule of an electrical network.

State and explain Hund's rule of maximum multiplicity.

State Kirchhoff.s rules for the analysis of electri cal circuits.

State and explain law of multiple proportions with example.

State and explain modern periodic table and modern periodic law?

All free charges are integral multiple of a basic unit charge .e.. Then quantization rule of electric charge implies

Galvanic cell Is a device which converts chemical energy to electrical energy.Explain the mechanism of corrosion using electro chemical theory.