21.
A change in the value of the emitter resistance Re in a differential amplifier

22.
The bandwidth of an RF tuned amplifier is dependent on

23.
Introducing a resistor in the emitter of a common amplifier stabilizes the dc operating point against variations in

25.
Most of the linear ICs are based on the two-transistor differential amplifier because of its

27.
A 741-type OP-amp has a gain-bandwidth product of 1MHz. A non-inverting amplifier using this OP-amp & having a voltage gain of 20 db will exhibit -3 db bandwidth of