Mathematics · Operational Amplifiers
An ideal operational amplifier (op-amp) and a silicon transistor T are connected such that the transistor is placed in the negative feedback loop of the op-amp, with its base connected to the output and emitter to the inverting input. If the non-inverting input is grounded and a positive current flows into the inverting node through an input resistor, what will be the typical output voltage Vout of the circuit assuming standard forward-bias base-emitter drop?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1-15 V
- 2+0.7 V
- 3-0.7 V✓
- 4+5.3 V
Correct answer
-0.7 V
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