11.
An amplifier without feedback has a voltage gain of 50, input resistance of 1 kΩ & Output resistance of 2.5 kΩ.The input resistance of the current shunt negative feedback amplifier using the above amplifier with a feedback factor of 0.2 is

12.
The most commonly used amplifier in sample & hold circuits is

15.
The current gain of a BJT is

17.
Generally, the gain of a transistor amplifier falls at high frequencies due to the

18.
An amplifier using an opamp with slew rate SR=1v/µsec has a gain of 40db.if this amplifier has to faithfully amplify sinusoidal signals from dc to 20 KHz without introducing any slew-rate induced distortion, then the input signal level must not exceed

19.
Voltage Series (feedback also called series-shunt feedback) results in