In a junction transistor operating under common emitter connections, the base current is changed by $$20$$ μA . Due to this $$base-emitter$$ voltage is changed by $$0.02$$ volt and collector current changed by $$2mA$$. Find the voltage gain of amplifier if load resistance RL is $$5000$$ Ω . (Take$$ $$RB=0$$ $$)

Question

In a junction transistor  operating under common emitter connections, the base current is changed by $$20$$ μA     . Due to this $$base-emitter$$ voltage is changed by  $$0.02$$ volt and collector current changed by $$2mA$$. Find the voltage gain of  amplifier if load resistance RL      is $$5000$$ Ω     . (Take$$ $$RB=0$$     $$)

Infinity Learn · Accepted Answer

β$$=$$δICδ$$IB=2$$×$$10$$−$$320$$×$$10$$−$$6=100$$ Input resistance $$=$$ $$RI=$$δVBEδ$$IB=0.0220$$×$$10$$−$$6=1000$$Ω, Voltage gain $$=$$ β×$$RLRI=100$$×$$50001000=500$$

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In a junction transistor operating under common emitter connections, the base current is changed by 20 μA . Due to this base-emitter voltage is changed by 0.02 volt and collector current changed by 2mA. Find the voltage gain of amplifier if load resistance RL is 5000 Ω . (Take RB=0 )

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