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GATE 2025 BM – Question 15

Analog and Digital Electronics · Operational Amplifiers · 1 mark · Multiple choice

The ideal op-amp circuit shown is driven by Vin=1 V and powered by ±15 V rails. Find Vout in volts.

Diagram for GATE 2025 BM question 15
  1. 1.0
  2. 2.0
  3. 0.5
  4. 0.1

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Show answer and explanation

Correct answer: (A) 1.0

Explanation

The output is directly fed back to the inverting input, while Vin drives the noninverting input. Negative feedback in an ideal voltage follower forces Vout=Vin, provided the output is within its supply range. One volt is well inside ±15 V, so the answer is 1.0 V, A.

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