Primary way to control open loop gain? Using input resistors Positive feedback A

Question

Primary way to control open loop gain? Using input resistors Positive feedback Apply negative feedback Ground one input

One type of internal op amp failure Constant high input Constant low output Either a or b None of the above
A summing amplifier Algebracally adds the diffrence between two inputs Algebraically adds two inputs Algebraically adds any bumber of inputs None of the above
With negative feedback Input voltage easily deive an op amp into no linear operation Gain is nearly 200,000 An op amp is too sensitive to input voltages All if the above Primary way to control open loop gain? Using input resistors Positive feedback Apply negative feedback Ground one input

One type of internal op amp failure Constant high input Constant low output Either a or b None of the above
A summing amplifier Algebracally adds the diffrence between two inputs Algebraically adds two inputs Algebraically adds any bumber of inputs None of the above
With negative feedback Input voltage easily deive an op amp into no linear operation Gain is nearly 200,000 An op amp is too sensitive to input voltages All if the above

Explanation / Answer

1. Answer is Apply negative feed back becuase controlling of open loop can only be done by providing feedback of negative type to it that reduces its gain and make it more stable to control it.

2. I have not clear concept about it but it should be either a or b.

3. Answer is algebraically adds any number of inputs becuase it can be done by connecting many inputs to op amp through a resistor which results in addition of those inputs at output.

4. Answer is gain is nearly 200,000 because when op amp open loop gain is so high such as 100,000,000 which can be easily reduced to more convenient finite gain thorugh negaative feedback. In negative feedback op amp go into linear operation not non linear operation and its becomes less sensitive to input voltages.

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.