Photoresistor and phototransistor sensor
Authored by sana stihi
Instructional Technology
10th - 12th Grade
Used 25+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Photoresistor sensor is made of a _________________ material
Insulator
Conductor
Semiconductor
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A photoresistor is an electronic component whose electrical resistance ________________________________when it is exposed to light.
changes
increases
doesn't change
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phototransistor sensor is a __________________ that reacts to brightness
sensor
feeler
indicator
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To build a light barrier in a car parking gate mechanism we need a _____________ .
Photoresistor sensor
Phototransistor sensor
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
We use a __________________ to switch off the light automatically.
Photoresistor sensor
Phototransistor sensor
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The output of the _________________ is only one or zero.
digital sensor
passive sensor
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A sensor that has a negative pole and a positive pole it means it has ___________.
resistance
polarity
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