Transistor Bias Circuits Questions and Answers
The Transistor Bias Circuits questions with answers topic covers key concepts in Electronics that are frequently asked in GATE, DRDO, ISRO, and ECIL exams. It helps learners analyze transistor configurations, biasing methods, and stability conditions. While mainly technical, the analytical problem-solving involved aligns closely with logical reasoning questions and answers, requiring conceptual clarity and circuit analysis skills. These questions improve your ability to apply reasoning principles to electrical circuits, making them essential for both academic and competitive preparation.
Transistor Bias Circuits
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20 questions
11. The input resistance of the base of a voltage-divider biased transistor can be neglected
- at all times.
- only if the base current is much smaller than the current through R2 (the lower bias resistor).
- at no time.
- only if the base current is much larger than the current through R2 (the lower bias resistor).
12. Which transistor bias circuit arrangement provides good Q-point stability, but requires both positive and negative supply voltages?
- base bias
- collector-feedback bias
- voltage-divider bias
- emitter bias
13. Collector-feedback bias provides very poor stability with negative feedback from collector to base.
- TRUE
- FALSE
16. A pnp transistor requires the same bias polarities as the npn transistor.
- TRUE
- FALSE