When a third doped element is added to a crystal diode in such a way that two pin junctions are formed, the resulting device is known as transistor.
A transistor consists of two pn junctions formed by
sandwiching either p type or n type semiconductor between a pair of opposite types.
there are two types of transistors
1) n-p-n transistor
2) p-n-p transistor
A n-p-n transistor is composed of two n-type semiconductors separated by a thin section of p-type semiconductor.
A p-n-p transistor is composed of two p-type semiconductors separated by a thin section of n-type semi conductor.
In any transistor, there are two pn junctions. therefore a transistor may be regarded as a combination of two diodes connected back to back.
There are three terminals in a transistor 1) Emitter
2)Collector 3) Base
A transistor consists of two pn junctions formed by
sandwiching either p type or n type semiconductor between a pair of opposite types.
there are two types of transistors
1) n-p-n transistor
2) p-n-p transistor
A n-p-n transistor is composed of two n-type semiconductors separated by a thin section of p-type semiconductor.
A p-n-p transistor is composed of two p-type semiconductors separated by a thin section of n-type semi conductor.
In any transistor, there are two pn junctions. therefore a transistor may be regarded as a combination of two diodes connected back to back.
There are three terminals in a transistor 1) Emitter
2)Collector 3) Base
