Basic Electricity 1:27
CP 1 – Cathodic Protection Tester Course Manual
© NACE International, 2000
02/01/05
Exercise 1.2: Series Circuit
Given:
Power supply voltage E
1
= 5V, E
2
= 5V, E
T
= 10V
Load resistance (R
1
) = 1
Load resistance (R
2
) = 2
Load resistance (R
3
) = 1
Calculate total resistance? __________________________
Calculate current? ________________________________
Calculate voltage drop across R
1
? ____________________
Calculate voltage drop across R
2
? ____________________
Calculate voltage drop across R
3
? ____________________
Calculate the sum of the voltage drops? _____________________
Does the voltage drop sum = total power voltage? Y N
Is Kirchhoff’s Voltage Law fulfilled? Y N
E
1
I
E
2
R
1
R
2
R
3
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