With the help of labelled diagram, give the principle, construction and theory of cylotron.

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

Explain with the help of a labelled diagram, the principle, construction and working of a moving coil galvanometer.

With the help of diagram explain the principle, construction and theory of a moving coil galvanometer. What is the function of iron core in moving coil galvanometer?

Explain with the help of labelled diagram, the construction, working and theory of ac generator. Obtain an expression for induced e.m.f.

Withthe help of a suitable diagram, explain the construction, working and theory of cyclotron.

With the help of labelled diagram, give the principle and magnifying power of compound microscope, when final image is formed at least distance of distinct vision.