The amplifier circuit below uses a BJT having a B of 110. (a) Find the DC emitter current. (b) Find the input resistance Rin and output resistance Rout without considering the effect of the Early voltage VA. (c) Find the voltage gain Ay = V/Vs, and the current gain A¡ = i/iş. (d) Recalculate Rin and Rout taking into account the effect of VA = 100V.

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The amplifier circuit below uses a BJT having a B of 110.
(a) Find the DC emitter current.
(b) Find the input resistance Rin and output resistance Rout without considering the effect of the
Early voltage VA.
(c) Find the voltage gain Av = V/Vs, and the current gain A; = i/is.
(d) Recalculate Rin and Rout taking into account the effect of VA = 100V.
Answer
+15V
(а) Iв
10k2
(b) Rin
8.
Rout
i;
1k
io
(с) Av
100k 1k
Aj
Rout
(d) Rin
Rin
-15V
Rout
Transcribed Image Text:The amplifier circuit below uses a BJT having a B of 110. (a) Find the DC emitter current. (b) Find the input resistance Rin and output resistance Rout without considering the effect of the Early voltage VA. (c) Find the voltage gain Av = V/Vs, and the current gain A; = i/is. (d) Recalculate Rin and Rout taking into account the effect of VA = 100V. Answer +15V (а) Iв 10k2 (b) Rin 8. Rout i; 1k io (с) Av 100k 1k Aj Rout (d) Rin Rin -15V Rout
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