Transistor is a temperature-sensitive device. Explain.

Explanation

In a transistor,free electrons and holes are charge carriers. When a transistor is properly biased i.e. emitter is forward biased and collector is reverse biased, these charge carriers are responsible for the current through the transistor as well as in external circuit. If the temperature of the transistor increases, some of the covalent bonds may be broken, giving rise to additional number of free electrons and holes. As a result of it, the current in a transistor will increase. If the current in a transistor is very strong it may causeb large heat and finally may result complete breakdown of semi-conducting device. That is why transistor is a temperature sensitive device.