a. Determine the ac resistance at I₁ = 2mA b. Determine the ac resistance at I₁ = 25mA c. Compare the results of parts (a)and (b) to the dc resistances at each current levels 30 25 20 15 10 542 0 Ip (mA) ∙Ala AV L I I 1 1 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 AV₁ VD (V)

a. Determine the ac resistance at I₁ = 2mA b. Determine the ac resistance at I₁ = 25mA c. Compare the results of parts (a)and (b) to the dc resistances at each current levels 30 25 20 15 10 542 0 Ip (mA) ∙Ala AV L I I 1 1 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 AV₁ VD (V)

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

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter7: Alternating Current, Power Distribution, And Voltage Systems

Section: Chapter Questions

Problem 7RQ

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Solar Cell

A solar cell, or photovoltaic cell, is a device that converts light into electricity directly through a photovoltaic effect, i.e., a physical and chemical event. It is a type of electromagnetic cell, defined as being used for its electrical properties, current, voltage, or resistance, which vary when exposed to light. Everyday cellular gadgets are usually the building blocks of photovoltaic modules, collectively known as solar panels. Single junction silicon solar cell can generate an open circuit of about 0.5 to 0.6 volts.

Question

a. Determine the ac resistance
at I₁ = 2mA
b. Determine the ac resistance
at I₁ = 25mA
c. Compare the results of parts
(a)and (b) to the dc
resistances at each current
levels
30
25
20
15
10
5
2
0
ID(mA)
∙Ala
AV
ΔΙΑ
1
I
1
1
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
AV
1
1
VD (V)

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