RTh= Rp || RTh<

RTh= RCdS + RTh<

RTh=(Ra+RTh1<)||(Rb+RTh2<)

RTh=(R1 + RTh< ) || R2

+RTh<

+RTh<

Resistor: parallel

Rp

G=Rp

Rp

Resistor: variable(CdS Photocell)

RCdS

Ra

Rb

Potentiometer

R1

R2

R1

R2

V-Divider

G = R2

R1+R2

+RTh< TotRTh<Tot =RTh1< +RTh2<

+RTh<Tot

+RTh2<

+RTh1<

G1=Rpot

Rpot

Rb

RaG2=Rpot = Ra + Rb

6

8

5

7

RTh= RTh<

RTh= R + RTh<

RTh= RTh<

RTh= RT + RTh<

vs1

Resistor

Voltage Source

R

vs2

RT

Voltage Source

Resistor: variable(Thermistor)

1

3

2

4

15.2 15.2

15.2 15.2

15.2 15.2

15.2 15.2

R R

R R

R R

R R