A. cut off point
B. saturation point
C. operating point
D. quasi saturation point
Related Mcqs:
- A dc power supply has no-load voltage of 30v,and a full-load voltage of 25v at full-load current of 1A.Its output resistance & load regulation ,respectively are_____________?
A. 5 Ω & 20 %
B. 25 Ω & 20 %
C. 5 Ω & 16.7 %
D. 25 Ω & 16.7 % - 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. - 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 rectifier is____________?
A. Vdc = Vm/π, PIV=2Vm
B. Vdc = 2Vm/π, PIV=2vm
C. Vdc = 2Vm/π, PIV=Vm
D. Vdc = Vm/π, PIV=Vm - A constant current signal across a parallel RLC circuits gives an o/p of 1.4v at the signal frequency of 3.89KHZ and 4.1KHZ .At the frequency of 4KHZ,the o/p voltage will be___________?
A. 1 v
B. 2v
C. 1.4v
D. 2.8v - 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 - In an op-amp differentiator:________________?
A. the amplitude of output is proportional to rate of change of input
B. the amplitude of output is proportional to input
C. output occurs when input is finite and constant
D. polarity of input and output is the same - Class AB operation is often used in power large signal amplifiers in order to_________?
A. get maximum efficiency
B. remove even harmonics
C. overcome a crossover distortion
D. reducing collector dissipation - The most commonly used amplifier in sample & hold circuits is______________?
A. A unity gain non-inverting amplifier
B. 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 common emitter, unbypassed resister provides___________?
A. voltage shunt feedback
B. current series feedback
C. negative voltage feedback
D. positive current feedback - In all base driver amplifiers__________?
A. ac collector voltage is 180° out of phase with ac base voltage
B. ac emitter voltage is 180° out of phase with ac base voltage
C. ac collector voltage is in phase with ac base voltage
D. none of the above