Success TrackerSuccess Tracker
Log inSign up

GATE EC 2020 Set 1 — Question 45

Go beyond PYQs with Success TrackerAI-powered personalised practice and doubt support. Unlimited practice on eligible plans; AI usage limits apply.
MCQ+2 / -0.67MediumMidband Gain & ResistancesBJT & MOSFET AmplifiersAnalog CircuitsSmall-Signal & Hybrid-Pi Model

Analog Circuits → BJT & MOSFET Amplifiers → Midband Gain & Resistances

Last updated

Question

For the BJT in the amplifier shown below, VBE=0.7 VV_{BE} = 0.7\text{ V}, kT/q=26 mVkT/q = 26\text{ mV}. Assume that BJT output resistance (ror_o) is very high and the base current is negligible. The capacitors are also assumed to be short circuited at signal frequencies. The input ViV_i is direct coupled. The low frequency voltage gain Vo/ViV_o/V_i of the amplifier is
BJT amplifier circuit diagram
Your answer

Choose one option, then check your answer.

The solution stays hidden until you check.

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.

Start with a free accountView plans and allowances

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 Vo=xV_o = x when the Switch, S,…2026 Set 1 Q18Consider the circuit shown in the Figure with Vi=3 VV_i = 3\text{ V} and VCC=12 VV_{CC} = 12\text{ V}. Assume…2026 Set 1 Q50A small signal source, Vi(t)=Acos⁡(105t)+Bsin⁡(107t)V_i(t) = A \cos(10^5 t) + B \sin(10^7 t) 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 nn-channel MOSFET is connected as shown in the Figure. Assume VTH=1 VV_{TH} = 1\text{ V},…