Explain with circuit diagram the action of a transistor as a switch.

Explain briefly, the action of a transistor as a switch.

Explain the working of a transistor as a switch.

With the help of labelled circuit diagram, explainthe working of transistor as a switch.

Explain with diagram, the working of a transistor as a common-emitter amplifier.

(i) Draw a circuit diagram to study the input and output characteristics of an n-p-n transistor in its common emitter configuration. Draw the typical input and output characteristics. (ii) Explain, with the hepl of a circuit diagram, the working of n-p-n transistor as a common emitter amplifier.