In common emitter amplifier, a change of 0.2 mA in the base current causes a change of 5 mA in the collector current. If input resistance is 2 k Ω and voltage gain is 75 , load resistance used in the

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In common emitter amplifier, a change of 0.2 mA in the base current causes a change of 5 mA in the collector current. If input resistance is 2 k Ω and voltage gain is 75 , load resistance used in the circuit is

TestHub · Accepted Answer

β = Δ I b ​ Δ I C ​ ​ = 0.2 5 ​ = 25 Voltage gain, A v ​ = β R i ​ R L ​ ​ ∴ R L ​ = β A v ​ R i ​ ​ = 25 75 × 2 ​ = 6 k Ω

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