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.Management Sciences
Category: Analog Electronics
The action of JFET in its equivalent circuit can best be represented as a_____________?
0
A. Current controlled Current source
B. Current controlled voltage source
C. Voltage controlled voltage source
D. voltage controlled current source
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.
A change in the value of the emitter resistance Re in a differential amplifier?
A. affects the difference mode gain Ad
B. affects the common mode gain Ac
C.affects both Ad and Ac
D. does not effect either Ad and Ac
Which of the following is not associated with a p-n junction?
A. junction capacitance
B. charge storage capacitance
C. depletion capacitance
D. channel length modulation
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 %
The cascade amplifier is a multistage configuration of__________?
A. CC-CB .
B. CE-CB
C. CB-CC
D. CE-CC
. If =0.98 ,Ico=6µA and Iβ=100µA for a transistor,then the value of Ic will be______?
A. 2.3mA
B. 3.2mA
C. 4.6 mA
D. 5.2mA
The effective channel length of a MOSFET in a saturation decreases with increase in___________?
A. Gate voltage
B. Drain voltage
C. Source voltage
D. Body voltage
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