The Q-point of a transistor is made to shift between Active and cut off Region, then how does the transistor behave?(a) Switch(b) Amplifier(c) Inverter(d) BulbThis question was addressed to me in a national level competition.The query is from The Operating Point in section Transistor Biasing and Thermal Stabilization of Electronic Devices & Circuits

The Q-point of a transistor is made to shift between Active and cut of

1.	The Q-point of a transistor is made to shift between Active and cut off Region, then how does the transistor behave?(a) Switch(b) Amplifier(c) Inverter(d) BulbThis question was addressed to me in a national level competition.The query is from The Operating Point in section Transistor Biasing and Thermal Stabilization of Electronic Devices & Circuits
Answer» Right option is (a) Switch Easiest explanation: When the Q point lies in cut off, No current flows and HENCE it acts as a closed switch. When the Q point is shifted to saturation, Current flows through the CIRCUIT creating a closed switch. Thus the current flow MAKES the TURN on and off of switch.

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