GATE EC 2021 Set 1 — Question 55
Go beyond PYQs with Success TrackerAI-powered personalised practice and doubt support. Unlimited practice on eligible plans; AI usage limits apply.NAT+2 / -0MediumIdeal & Non-Ideal Op-AmpOp-Amp CircuitsAnalog CircuitsRL, RC & RLC TransientsTransient & AC AnalysisNetwork Theory
Analog Circuits → Op-Amp Circuits → Ideal & Non-Ideal Op-Amp
Last updated
Question
A circuit with an ideal OPAMP is shown in the figure. A pulse of duration is applied to the input. The capacitors are initially uncharged.
The output voltage of this circuit at (in integer) is ________ V.
Correct answer
-12
Solution
At , the input steps from to . Since the capacitors are initially uncharged, the voltage across them cannot change instantaneously.The voltage at the inverting terminal is determined by the capacitive voltage divider between the input capacitor and the feedback capacitor:The non-inverting terminal is grounded, so .Since , the ideal OPAMP will drive its output to the negative saturation voltage. Given the supply voltages are , .
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 Op-Amp Circuits
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 Q23The relation between the input current () and the output voltage () of a circuit is governed…2026 Set 1 Q30The output voltage (in Volt) for the network given in the Figure is __. (rounded off to two…2026 Set 1 Q31Consider the circuit shown in the Figure, where the input is in Volt. The average power…