Electrical Measurements Photoelectric Transducers Online Exam Quiz
Electrical Measurements Photoelectric Transducers GK Quiz. Question and Answers related to Electrical Measurements Photoelectric Transducers. MCQ (Multiple Choice Questions with answers about Electrical Measurements Photoelectric Transducers
Photoelectric transducers consist of _______
Options
A : 1 transducer
B : 3 transducers
C : 5 transducers
D : 10 transducers
Photoconductive transducers produce output ________
Options
A : due to change in inductance
B : due to change in light
C : due to change in resistance
D : due to change in temperature
Commonly used photoemissive material is _______
Options
A : gold
B : opium
C : tellurium
D : cesium-antimony
Reverse leakage current in a transistor _______
Options
A : is affected by light
B : is not affected by light
C : increases with a decrease in pressure
D : decreases with increase in temperature
Optical radiations involve _________
Options
A : optoelectric devices
B : biological devices
C : mechanical devices
D : chemical devices
When an open circuited pn junction is illuminated then _________________
Options
A : resistance increases
B : there is no effect
C : electron hole pairs are formed
D : capacitance increases
Photoconductors are made of _______
Options
A : thick layer of semiconductor
B : thin layer of semiconductor
C : capacitive substrate
D : inductive substrate
Optocoupler consists of a phototransistor and a led.
Options
A : True
B : False
C :
D :
Phototubes are very quick in response to light.
Options
A : True
B : False
C :
D :
Response time for gas-filled phototubes is _______
Options
A : zero
B : intermediate
C : fast
D : slow
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