A signal that is applied at the inverting input terminal of an op-amplifier undergo amplification, at the output terminal with a phase shift of:
Correct answer: D. 180°
- A. 0°
- B. 270°
- C. 360°
- D. 180°
Explanation
Explanation:When an operational amplifier is used as an inverting amplifier, the output terminal with a phase shifted of 180°. G = -R2 / R1Here the negative sign indicates the phase inversion.
This question appeared on the UHS MDCAT 2009 paper, which you can sit online with every answer explained.
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A PN junction forms when p type and n type semiconductor regions meet, creating a depletion layer and a potential barrier. The topic covers forward and reverse bias, diode current voltage characteristics, breakdown and rectification, while distinguishing an ordinary junction diode from a transistor formed from multiple junctions.
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