Tag: Semiconductors

Solid state device that converts artificial or natural light directly into electric current. Also called photovoltaic cell. It is based ...

It is diode which gives out light radiations when forward biased. Led’s are made of GaAsp, Gap. Light-emitting diode play ...

Valence band  The energy band formed by a series of energy levels containing valence electrons is known as valence band. ...

A device which increases the amplitude of the input signal is called amplifier. NPN transistor as CE amplifier ie =ib ...

Half wave rectifier  When the P-N junction diode rectifies half of the ac wave, it is called half wave rectifier. ...

The name of this electronic device is derived from it's fundamental action transfer resistor. Working of transistor There are four ...

I Positive terminal of the battery is connected to the N-crystal and negative terminal of the battery is connected to ...

A pure semiconductor is called intrinsic semiconductor. It has thermally generated current carriers. They have four electrons in the outermost ...

Positive terminal of the battery is connected to the P-crystal and negative terminal of the battery is connected to N-crystal. ...