Determine the frequency of Oscillation of the circuit shown in figure, Assume the OP-amp to be ideal

A major advantage of active filters is that they can be realized without using

The circuit shown in Figure, acts as a ... and for the given inputs, its output voltage is . . . . . $$V.$$

For the differential amplifier circuit shown in Figure, determine the differential gain, the common-mode gain and the common mode rejection ratio.