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.
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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.
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