Articles

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....

  p-type semiconductor These are obtained by adding a small amount of trivalent impurity to a pure sample of semiconductor...

Ohmmeter The ohmmeter is a convenient direct reading device for measurement of resistance. The purpose of an ohmmeter is to...

A properly doped PN junction diode, which has a sharp breakdown, is known as a zener diode. It is also...