Transistor Biasing Quiz

What is the purpose of transistor biasing?

• To eliminate thermal runaway

• To increase the transistor's size

• To apply a suitable DC voltage across the transistor terminals

• To reduce the collector current

What does the Q point represent in a transistor?

• The maximum collector current

• The zero signal value of VCE and IC

• The cutoff voltage

• The saturation point of the transistor

Which biasing method is most widely used?

• Emitter feedback bias

• Collector to base feedback bias

• Fixed bias

• Voltage divider bias

What is thermal runaway in a transistor?

• A type of transistor failure due to low voltage

• A condition where increased temperature leads to increased collector current

• A method to stabilize the Q point

• A technique to reduce leakage current

What does the DC load line represent?

• The relationship between VCE and IC when no AC signal is applied

• The maximum voltage across the transistor

• The minimum current required for operation

• The thermal characteristics of the transistor

What is the effect of temperature variations on the collector current?

• It decreases the collector current

• It has no effect

• It stabilizes the Q point

• It can cause instability in the collector current

What is the primary function of the emitter resistor in voltage divider bias?

• To increase the collector current

• To provide stability for the operating point

• To reduce the base current

• To eliminate leakage current

What happens when the collector current increases due to temperature?

• The Q point becomes unstable

• The voltage drop across RE decreases

• The collector current decreases

• The base current increases

Which of the following is NOT a method of biasing transistors?

• Fixed bias

• Voltage divider bias

• Collector feedback bias

• Emitter feedback bias

What is the relationship between ICBO and ICEO?

• ICEO = ICBO + 1

• ICEO = (1 + β) ICBO

• ICEO = ICBO - 1

• ICEO = β ICBO