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GATE 2026 BM – Question 24

Measurements and Control Systems · Control System Transfer Functions · 1 mark · Multiple choice

The unity-negative-feedback system shown has forward gain G=100 and input Vin=5 V. Find |Vout−Vin| in volts.

Diagram for GATE 2026 BM question 24
  1. 0.00
  2. 0.05
  3. 0.50
  4. 1.00

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Show answer and explanation

Correct answer: (B) 0.05

Explanation

For unity negative feedback, Vout=G(Vin−Vout), so Vout=G Vin/(1+G). The tracking error is Vin/(1+G)=5/101≈0.0495 V. Rounded to the offered value it is 0.05 V, B.

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