The current gain for a transistor used in the common-emitter configuration is 98. If the load resistance be 1MΩ and the internal resistance be 600Ω, what is the voltage gain?

Question

The current gain for a transistor used in the common-emitter configuration is 98. If the load resistance be 1MΩ and the internal resistance be 600Ω, what is the voltage gain? (A) 90 (B) 95 (C) 100 (D) None of these

Tardigrade Admin · Accepted Answer

Current gain, β =98 Load resistance, RL=106Ω Internal resistance, Ri=600Ω In common emitter configuration, Av=β (RL/Ri)=98× (106/600)=16.33× 104

Q. The current gain for a transistor used in the common-emitter configuration is $98.$ If the load resistance be $1 M Ω$ and the internal resistance be $600Ω,$ what is the voltage gain?

$90$

$95$

$100$

None of these

Current gain, $β = 98$
Load resistance, $R_{L} = 1 0^{6} Ω$
Internal resistance, $R_{i} = 600Ω$
In common emitter configuration,
$A_{v} = β \frac{R _{L}}{R _{i}} = 98 \times \frac{1 0 ^{6}}{600} = 16.33 \times 1 0^{4}$

Q. The current gain for a transistor used in the common-emitter configuration is 98. If the load resistance be 1MΩ and the internal resistance be 600Ω, what is the voltage gain?

90

95

100