Describe the cut-off mode of a transistor.

Question
(a).
(b).
Describe the cut-off mode of a transistor.
An amplifier circuit with a bipolar junction transistor (BJT) is
shown in the Figure 4
Vin
C1
47 μF
(i).
(ii).
(iii).
(iv).
ww
ww
R1
10 ΚΩ
R2
4.7 ΚΩ
ww
R3
100 Ω
R4
1 ΚΩ
Figure 4
C3
47 μF
C2
47 μF
Determine the BJT configuration,
Vout
Describe the BJT input and output terminals,
State two of the BJT output characteristics,
V
15 V
Calculate the current amplification factor of the BJT, if
emitter current, IE, base current, B and collector
current, Ic is 4.080 mA, 35.41 μA and 4.045 mA
respectively.
Transcribed Image Text:(a). (b). Describe the cut-off mode of a transistor. An amplifier circuit with a bipolar junction transistor (BJT) is shown in the Figure 4 Vin C1 47 μF (i). (ii). (iii). (iv). ww ww R1 10 ΚΩ R2 4.7 ΚΩ ww R3 100 Ω R4 1 ΚΩ Figure 4 C3 47 μF C2 47 μF Determine the BJT configuration, Vout Describe the BJT input and output terminals, State two of the BJT output characteristics, V 15 V Calculate the current amplification factor of the BJT, if emitter current, IE, base current, B and collector current, Ic is 4.080 mA, 35.41 μA and 4.045 mA respectively.
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