If R1 = 10 kΩ and R2 = 100 kΩ then the gain of op-amplifier as inverting amplifier is:
Correct answer: C. -10
- A. -1
- B. 10
- C. -10
- D. 1
Explanation
Explanation:The gain of an inverting amplifier using an operational amplifier is given by the ratio of the feedback resistor to the input resistor with a negative sign. G = R2 / R1Substituting the given values of R1 and R2, we get: G = -100kΩ / 10kΩ = -10Therefore, the gain of the operational amplifier as the inverting amplifier is -10.
This question appeared on the UHS MDCAT 2009 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About PN Junction
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.
Practise Electronics
660 free Electronics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More PN Junction questions
An n-type semiconductor is made by doping silicon crystal with _.
Practically _ current flows in a reverse p-n junction.
In LED when an electron combines with a _ during forward bias conduction, a photon of visible light is emitted.
If inputs A = 1, B = 0 and output X = 1, then it corresponds to the operation of a:
In certain circuit, if the transistor has a collector current of 10 mA and base current of 50 uA, then the current gain of the transistor is:
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: