$$ \text { In the circuit shown, the open loop gain of the operational amplifier is } A_0=105 \text {. } $$

$$ \text { What is the voltage gain of the circuit? (Round off to two decimal places) } $$

In the circuit, shown below, if the values of $R$ and $C$ are very large, the form of the output voltage for a very high frequency square wave input, is best represented by

The op-amps in the following circuit are ideal. The voltage gain of the circuit is ___________. (Round off to the nearest integer)

A difference amplifier is shown in the figure. Assume the op-amp to be ideal. The CMRR (in dB) of the difference amplifier is ________ (rounded off to 2 decimal places).