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MCQ Practice Question
Electronic Devices & CircuitsOperational Amplifiers

An ideal inverting op-amp has Rin = 20 kOhm and Rf = 200 kOhm. For Vin = +0.25 V, Vo is?

  • A+2.5 V
  • B-2.5 V
  • C+0.025 V
  • D-0.025 V
Report an error
Correct Answer: B. -2.5 V
Explanation: Av = -Rf/Rin = -10, so Vo = -10 × 0.25 V = -2.5 V, assuming the output remains within the supply limits.
Reference: Standard op-amp calculation: inverting amplifier
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