When the transistor is used as an amplifier,
- AEmitter-base junction must be reverse biased,Collector-base junction must be forward biased
- BEmitter-base junction must be forward biased,Collector-base junction must be forward biased
- CEmitter-base junction must be reverse biased,Collector-base junction must be reverse biased
- DEmitter-base junction must be forward biased,Collector-base junction must be reverse biased
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Similar Questions
In a common emitter transistor amplifier circuit,the current gain $\alpha = 0.8$. If the base current changes by $3 \mu A$,then the collector current changes by: (in $\mu A$)
What is the basic constitutional unit in the electronic circuit?
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View SolutionIn a common emitter amplifier,a.c. current gain is $40$ and input resistance is $2 \ k\Omega$. The load resistance is given as $10 \ k\Omega$. Then the voltage gain is
$A$ change of $0.04 \ V$ takes place between the base and the emitter when an input signal is connected to the common emitter transistor amplifier. As a result,a $20 \ \mu A$ change takes place in the base current and a change of $2 \ mA$ takes place in the collector current. The input resistance and $AC$ current gain are:
DifficultAP EAMCET 2021
View SolutionIn a common emitter $(CE)$ amplifier having a voltage gain $G,$ the transistor used has transconductance $0.03\, mho$ and current gain $25.$ If the above transistor is replaced with another one with transconductance $0.02\, mho$ and current gain $20,$ the voltage gain will be
DifficultAIPMT 2013
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