Electronics - Operational Amplifiers - Discussion

Discussion Forum : Operational Amplifiers - General Questions (Q.No. 17)
17.
If a noninverting amplifier has an RIN of 1000 ohms and an RFB of 2.5 kilohms, what is the RIN voltage when 1.42 mV is applied to the correct input?
3.5 mV
ground
1.42 mV
0.56 mV
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
16 comments Page 2 of 2.

Ashok said:   1 decade ago
r in=1000:
i=v/r:
v=1.42mA
so i=1.42A

Vishal said:   1 decade ago
Ashok how will be vtg 1.42mA ?

Christie said:   1 decade ago
how to solve this problem?...

Shaiq said:   5 years ago
Thank you all for explaining.
(1)

Caro said:   1 decade ago
2.5/1000+1x1.42 = 1.42.

Dharm said:   1 decade ago
How to solve this ?


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