GATE EC 2014 Set 4 — Question 49
Go beyond PYQs with Success TrackerAI-powered personalised practice and doubt support. Unlimited practice on eligible plans; AI usage limits apply.NAT+2 / -0HardCE, CB & CC ConfigurationsBJT & MOSFET AmplifiersAnalog CircuitsBiasing & DC Operating Point
Analog Circuits → BJT & MOSFET Amplifiers → Biasing & DC Operating Point
Last updated
Question
For the common collector amplifier shown in the figure, the BJT has high , negligible , and V. The maximum undistorted peak-to-peak output voltage (in Volts) is _______.
Correct answer
9.39 to 9.41
Solution
1.DC Analysis:
Calculate the base voltage using the voltage divider rule:Calculate the emitter voltage :
2.Output Swing Analysis:
The output is taken at the emitter. The maximum undistorted swing is limited by the transistor entering saturation or cutoff.- Positive Swing: The transistor saturates when the emitter voltage reaches approximately (since is negligible).
- Negative Swing: The transistor cuts off when the emitter current goes to zero, which happens when the emitter voltage reaches 0 V.
3.Peak-to-Peak Voltage:
For an undistorted sinusoidal output, the peak amplitude is limited by the smaller of the two swings:The maximum undistorted peak-to-peak voltage is:
Continue learning with Success Tracker
A step still unclear? Work through it with support
Use Success Tracker to ask about the reasoning, then try another GATE EC question to check your understanding.
AI-powered practice· Unlimited practice on eligible plans
- PYQs with solutions
- Attempt available previous-year questions, then compare your reasoning with the worked solution. Coverage varies by stream.
- Practice that adapts
- Choose a topic, work on weaker areas and bookmark questions to revisit. Your attempts feed your progress tracking.
- AI doubt support
- Ask follow-up questions about a step or concept while practising, instead of stopping at the final answer.
Unlimited practice is available on eligible plans. Free practice and AI usage have limits; check the current plan allowances before choosing.
This page stays readable without an account. AI responses can be wrong; check them against the solution and source material.
More questions on BJT & MOSFET Amplifiers
2026 Set 1 Q17The ideal OP-AMP circuit shown in the Figure produces output voltage when the Switch, S,…2026 Set 1 Q18Consider the circuit shown in the Figure with and . Assume…2026 Set 1 Q50A small signal source, is applied to a BJT circuit as…2026 Set 1 Q53A circuit using an ideal OP-AMP is shown in the Figure. Which of the following options gives the…2026 Set 1 Q60An -channel MOSFET is connected as shown in the Figure. Assume ,…