TRANSISTOR AMPLIFIER - Quiz

1) What is the purpose of using positive feed back in amplifiers?

To produce modulation To produce demodulation To produce oscillation To produce multiplexion

2) What will happen when the forward bias voltage across the PN junction is increased excessively?

Increases the cut - in - voltage Barrier width of junction increases Junction ruptured and short circuited No current flows through the junction

3) What is the overall base emitter voltage required to turn the darlington pair?

0.2 V 0.3 V 0.7 V 1.4 V

4) Why the complementary - symmetry amplifier is preferred over the other types of amplifier configurations?

To minimize the gain To get less distortion To get more voltage gain To eleminate the transformer

5) How can you confirm a transistor as defective?

By circuit testing By ohm meter testing By physical testing By voltage measurements