Electronic Devices Circuits Aptitude Test Online Exam Quiz
Electronic Devices Circuits Aptitude Test GK Quiz. Question and Answers related to Electronic Devices Circuits Aptitude Test. MCQ (Multiple Choice Questions with answers about Electronic Devices Circuits Aptitude Test
In a PNP germanium transistor, the cut in voltage is about_________
Options
A : -0.1V
B : -0.01V
C : -0.05V
D : -0.07V
A germanium transistor used as an amplifier has a collector cut off current ICBO=10µA at a temperature 27°C and ?=50. What is the collector current when the base current is 0.25mA?
Options
A : 10.76mA
B : 13.01mA
C : 15.67mA
D : 11.88Ma
A common base transistor amplifier has an input resistance of 20? and output resistance of 100k?. If a signal of 400mV is applied between emitter and base, find the voltage amplification. Assume ?ac to be one.
Options
A : 20
B : 50
C : 30
D : 25
The amplification factor for a transistor is given by_________
Options
A : A=?RL/re
B : A=?RLre
C : A=re/ ?RL
D : A=RL/re?
In a PNP transistor operating in active region, the main stream of current is_________
Options
A : drift of holes
B : drift of electrons
C : diffusion of holes
D : diffusion of electrons
The emitter current consist of_________
Options
A : electrons passing from collector to emitter
B : holes crossing from base to collector
C : electron current Ine constituted by electrons
D : immobile charge carriers
The total emitter current (IE) is given by_________
Options
A : IE = IpE * InE
B : IE = IpE – InE
C : IE = IpE / InE
D : IE = IpE + InE
Why is the silicon mostly chosen when compared to germanium?
Options
A : low power consumption
B : high efficiency
C : greater working temperature
D : large ICBO
The change in output voltage across the load resistor for a transistor during amplification is_________
Options
A : RL *?*?IE
B : RL *?IE/?
C : RL *?2*?IE
D : RL *?1/2*?IE
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