Mini Mock-1 on Basics of Electronics for SSC:JE 2017

Fig. shows a negative voltage feedback amplifier with typical values. What is the feedback fraction of the output fed back to the input?

The voltage gain of an emitter follower is……………….

For the emitter follower circuit shown in Fig., the approximate input impedance of the emitter follower circuit is

The voltage gain of a tuned amplifier is ………. At the resonant frequency.

A tuned amplifier uses ……… load.

The energy gap between conduction band and valence band of a substance is of the order of 0.07 eV. It is

A 0 K, an intrinsic semiconductor behaves as a

A piece of germanium is cooled from room temperature to 100 K. Its conductivity will