A differential amplifier has a differential gain of 20,000 . CMRR=80 dB. The common mode gain is given by________? A. 2 B. 1 C. 1/2 D. 0
MOSFET can be used as a__________? A. current controlled capacitorB. voltage controlled capacitor C. current controlled inductor D. voltage controlled inductors
Which of the following amplifier circuit using junction transistor has the best gain? A. Common baseB. Common emitter C. Common collector D. All have the same gain
The horizontal intercept of dc load line is the same as ideal____________? A. cut off point B. saturation point C. operating point D. quasi saturation point
In a CB amplifier the maximum efficiency could be____________? A. 99% B. 85% C. 50%D. 25%
Introducing a resistor in the emitter of a common amplifier stabilizes the dc operating point against variations in____________? A. Only the temperature B. only the β of the transistorC. Both Temperature & β D. None of the above
The most commonly used amplifier in sample & hold circuits is______________? A. A unity gain non-inverting amplifierB. A unity gain inverting amplifier C. An inverting amplifier with a gain of 10 D. An inverting amplifiers with a gain of 100
In a full-wave rectifier using two ideal diodes,Vdc & Vm are the dc & peak values of the voltage respectively across a resistive load. If PIV is the peak inverse voltage of the diode, then the appropriate relationships for this…
The action of JFET in its equivalent circuit can best be represented as a_____________? A. Current controlled Current source B. Current controlled voltage source C. Voltage controlled voltage sourceD. voltage controlled current source
Generally, the gain of a transistor amplifier falls at high frequencies due to the___________? A. Internal Capacitance of the device B. Coupling capacitor at the input C. Skin effect D. Coupling capacitor at the output