Vin 3V R₁ =1005 R2=100Л R₂=1002 R₁4 = 220 A R₁ B₂ R4 R3 Be 1. Calculate VTH by finding the difference in voltage between point A and B. ii. Calwlate the resistance from point A to B while all the voltages have been shorted

Vin 3V R₁ =1005 R2=100Л R₂=1002 R₁4 = 220 A R₁ B₂ R4 R3 Be 1. Calculate VTH by finding the difference in voltage between point A and B. ii. Calwlate the resistance from point A to B while all the voltages have been shorted

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter12: Electronic Control Devices

Section: Chapter Questions

Problem 14RQ

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Photoconductive Cell

Photoconductive cells are light-sensitive resistors in which resistance is inversely proportionated to light intensity when illuminated. These devices consist of a thin single-crystal or polycrystalline film of composite semiconductor materials. Cadmium sulfide (CdS) is used to make the most commercially available photoconductive particles which are sensitive to light in the visible spectrum. Other less commonly used substances respond to infrared light, but not to the visible spectrum. Such substances are lead sulfide (PbS), lead selenide (PbSe), and lead telluride (PbTe), and so on.

Question

Vis
3V
R₁ =1005
B₂=1005
Rz=1005
R₁4 = 220
R₁
A B
R₂12
A.
R4
R3
ва
1. Calculate VTH by finding the difference
in voltage between point A and B.
ii. Calwlute the resistance from point A to
B while all the voltages have been
shorted

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