The input impedance of a differential amplifier equals r’e times________________?

Related Mcqs:

In the common mode, _______________?

A. both inputs are grounded B. the outputs are connected together C. an identical signal appears on both the inputs D. the output signal are in-phase...

The differential gain is _____________?

A. very high B. very low C. dependent on input voltage D. about 100...

In differential-mode, ______________?

A. opposite polarity signals are applied to the inputs B. the gain is one C. the outputs are of different amplitudes D. only one supply voltage is used...

A certain inverting amplifier has a closed-loop voltage gain of 25. The Op-amp has an open-loop voltage gain of 100,000. If an Op-amp with an open-loop voltage gain of 200,000 is substituted in the arrangement, the closed-loop gain________________?

A. doubles B. drops to 12.5 C. remains at 25 D. increases slightly...

A certain noninverting amplifier has Ri of 1 kO and Rf of 100 kO. The closed-loop voltage gain is_____________?

A. 100,000 B. 1000 C. 101 D. 100...