Op-amp with Ao=100db and dominant-pole ar 4Hz is used as an inverting amplifer with gain of -100. What is the bandwidth of the inverting amplifier?

Any ideas?

 

A gain of 100 is 40dB.
A 741 opamp has its pole at about 4Hz and has an open-loop gain of slightly more than 100dB. At a gain of 100 its bandwidth is 9kHz.

 

So what would happen if we use non-inverting amplifier with a gain of +100? What would be the bandwidth this time?

 

The bandwidth of an inverting opamp and a non-inverting opamp are almost the same when the gain is high.