When an operational amplifier is used as an inverting amplifier, the angle between its output and input signal is:
Correct answer: E. 180 degrees
- A. 30 degrees
- B. 45 degrees
- C. 60 degrees
- D. 90 degrees
- E. 180 degrees
Explanation
In an inverting amplifier configuration, the input signal is applied to the negative input terminal of the operational amplifier. The output signal is then inverted with respect to the input signal and amplified by a factor determined by the resistor values used in the circuit. Since the output signal is inverted with respect to the input signal, the phase difference between the two signals is 180 degrees. This means that the output signal is exactly opposite in polarity to the input signal. Therefore, the angle between the output and input signal in an inverting amplifier is 180 degrees.
Last updated
About Electronics
A p-n junction forms when p-type and n-type semiconductor regions meet, creating a depletion layer, barrier potential and rectifying action. The work covers forward and reverse bias, junction current, diode characteristics, and how a diode converts alternating current into pulsating direct current through half-wave and full-wave rectification.
Practise Electronics
660 free Electronics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Physics questions like this
Physics is on 13 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
(7) In n-p-n transistor, p works as: (Tag: Electronics sub-tag: Transistors )
A capacitor and an inductor are connected to the A.C. supply. If we double the frequency of the A.C. supply then the effect on the reactance of capacitor XC and reactance of inductor XL will be:
A capacitor is to be used to provide smoothing for a half wave rectifier. In which of the following diagrams is capacitor correctly connected?
A changing electric flux develops in the region:
A circuit that adds positive or negative voltage to an input sine wave is called _.