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Q#1
BJT
GATE EE 1991
MSQ
+2 marks
-0 marks
Figure shows a common emitter amplifier
(a) Simplify the circuit by applying Thevenin’s theorem to the biasing network at the base of the transistor
(b) Assuming to be a short for the frequency range considered. Draw the small signal a.c. model of the circuit obtained in (a) by using the simple model for the transistor shown in figure.
(c) Evaluate the small signal gain of the amplifier.
Small signal a.c. model
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| Topic | Questions | Attempted | Correct | |
|---|---|---|---|---|
| Network Analysis | 268 | 0 | 0 | |
| Signals and Systems | 168 | 0 | 0 | |
| Control Systems | 262 | 0 | 0 | |
| Analog Electronics | 186 | 0 | 0 | |
| Digital Electronics | 150 | 0 | 0 | |
| Electrical Machines | 399 | 0 | 0 | |
| Power Electronics | 243 | 0 | 0 | |
| Power Systems | 350 | 0 | 0 | |
| EMFT EE | 111 | 0 | 0 | |
| Measurement | 160 | 0 | 0 | |
| Engineering Mathematics | 236 | 0 | 0 | |
| General Aptitude | 221 | 0 | 0 |
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