Coherence: The light from a laser is said to be coherent, which means the wavelengths of the laser light are in phase...

Applications: The tunnel diode is used as a microwave oscillator at a frequency of about 10 GHz. It is used...

A solar cell or photovoltaic cell is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect which is a physical and chemical phenomenon. It is...

The field effect transistor (FET) is another type of transistor which operates on the principle of that semiconductor conductivity can be...

A Gunn diode is also called as a TED (transferred electron device). It is a two terminal passive semiconductor electronic component with negative resistance used in...