TRANSISTOR AMPLIFIER - Practice Mode

1) Which type of amplifier in used to operate the loud speaker?

IF amplifier RF amplifier Power amplifier Voltage amplifier

Correct Answer: Power amplifier

2) What is the voltage gain in a transistor if the input voltage in 40mv and the output voltage in 3.6V?

45 90 180 270

Correct Answer: 90

3) What is the input impedence of darlington pair transistors?

Very low input impedance Very high input impedance Medium input impedance Uniter

Correct Answer: Very high input impedance

4) What is the advantage of using bias in transistor circuits?

Provides positive feed back Never reach saturation Easily sets saturated Gives maximum distortion

Correct Answer: Never reach saturation

5) Which class of amplifier uses fixed bias because of its imperent advantage of transistor will never go to saturation?

Class - A Class - B Class - AB Class - C

Correct Answer: Class - A

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