Question

A 100 mv, 1KHt AC signal is amplified to 10 volts using inverting amplifier Find the value of input resistance if Rf = 100Kohm​

Answer 1

Answer:

put l value in resistance = 150

then put x at the digits .

So the answer is 275

Explanation:

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Answer 2

Answer:

We saw in the last tutorial that the Open Loop Gain, ( AVO ) of an operational amplifier can be very high, as much as 1,000,000 (120dB) or more.

We saw in the last tutorial that the Open Loop Gain, ( AVO ) of an operational amplifier can be very high, as much as 1,000,000 (120dB) or more.However, this very high gain is of no real use to us as it makes the amplifier both unstable and hard to control as the smallest of input signals, just a few micro-volts, (μV) would be enough to cause the output voltage to saturate and swing towards one or the other of the voltage supply rails losing complete control of the output.