When a transistor is connected in common emitter mode, it with have__________?

A. Negligible input resistance and high output resistance
B. High input resistance and low output resistance
C. Medium input resistance and high output resistance
D. Low input resistance as well as output resistance

In a transistor leakage current mainly depends on__________?

A. Doping of base
B. Size of emitter
C. Rating of transistor
D. Temperature

Voltage Series feedback also called series-shunt feedback) results in__________?

A. Increase in both input & output impedances
B. Decreases in both input & output impedances
C. Increase in input impedance & decreases in output impedance
D. Decrease in input impedance & increase in output impedance

To prevent a DC return between source and load, it is necessary to use___________?

A. Resistor between source and load
B. Inductor between source and load
C. Capacitor between source and load
D. Either a. or b.

The current gain of a BJT is__________?

A. Gm r0
B. Gm / r0
C. Gm rπ
D. Gm /rπ

An ideal OP-AMP is an ideal___________?

A. Current controlled current source
B. Current controlled voltage source
C. Voltage controlled voltage source
D. Voltage controlled current source

An amplifier without feedback has a voltage gain of 50,input resistance os 1 KΩ & Output resistance of 2.5KΩ.The input resistance of the current-shunt negative feedback amplifier using the above amplifier with a feedback factor of 0.2 is___________?

A. 1/11kω
B. 1/5kω
C. 5kω
D. 11kω

In the differential voltage gain & the common mode voltage gain of a differential amplifier are 48db &2db respectively, then its common mode rejection ratio is__________?

A. 23db
B. 25db
C. 46db
D. 50db

The parameter hie stands for input impedance in _____________?

A. Cb arrangement with output shorted
B. Cc arrangement with output shorted
C. Ce arrangement with output shorted
D. None of the above

The values of h parameter of a transistor in CE arrangement are ____________ arrangement?

A. The same as for cb
B. The same as for cc
C. Different from that in cb
D. None of the above