The transfer characteristics of a base biased common emitter transistor is shown in the figure. Which of the following statements are true?
it can be used as an amplifier.
it can be used as a switch turned off.
it can be used as a switch turned on.
Text Solution
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From the given transfer characteristics of a base biased common emitter transistor.
(i) When 
which is in between 
the transistor circuit is in active state and is used as an amplifier
(ii) When, 
there is no collector current. The transistor is in cut off state. The transistor circuit can be used as a switch turned off.
(iii) When 
the collector current becomes maximum and transistor is in saturation state and can be used as switch turned on state, so option and are correct.
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