Describe the principle, construction and working of an AC generator.

Describe the principle, construction and working of a DC generator.

Give the principle, construction and working of an a.c. generator.

Describe the principle, construction and working of a DC motor with the help of a diagram.

With the help of neat diagram , descibe the principle, construction and working of Van de Graff generator.

With the help of labelled diagram, describe the principle,construction and working of a transformer.

Explain with a labelled diagram, the principle, construction and working of an electric generator.