TRANSISTOR AMPLIFIER - Practice Mode

1) How does the values of bias resistors selected for collector current in class -B amplifiers?

Q point set slightly below cut-off Quiescent current at mid point Quiescent current beyond the cut-off point Quiescent current over the cut-off value

Correct Answer: Quiescent current over the cut-off value

2) Which parameter of passive component can be calculated using the formula ?

Capacitance Inductance Capacitive reactance Inductive reactance

Correct Answer: Capacitive reactance

3) Which type of amplifier is used to operate the loud speaker?

IF Amplifier RF Amplifier Power Amplifier Voltage Amplifier

Correct Answer: Power Amplifier

4) What is the advantage of silicon over germanium for transistor fabrication?

Lower thermal stability Higher thermal stability Lower operating voltage Higher amplification factor

Correct Answer: Higher thermal stability

5) What is the effeciency transformer coupled class A amplifier?

Less than 20% About 50% More than 60% Unity

Correct Answer: About 50%

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