Discuss the working principle of solar cooker.

Discuss the working principle of a moving coil galvanometer.

Discuss the working Principle of Wheat stone bridge. Explain with diagram how will determine the resistance of a resistor which is unknown using this method.

State the working principle of ac generator.

Explain the working principle of a Barlow's wheel.

Explain the working principle of a p-n junction.

Which is the energy source of solar cooker

State the working principle of an electric screen

Explain the working principle of a Van de Graaff generator. State its uses.

State the working principle of A.C. generator.