GATE EC 2021 Set 1 — Question 29
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Analog Circuits → Op-Amp Circuits → Ideal & Non-Ideal Op-Amp
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Question
Consider the circuit shown in the figure. The current source on the right-hand side (directed downward) has a value of .
The value of (rounded off to one decimal place) is ________ V.

Correct answer
1 to 1
Solution
Take the bottom wire as ground. Let be the top-middle node (voltage ) and the top-right node. Work in mA, k, V.
Answer: V
- Left branch from to ground: V source ( on top) in series with , carrying downward.
- Middle: from to ground, carrying .
- from to ; the mA source drives current from into ; the mA source draws current from to ground.
Answer: V
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