Download Chapter 6 , 7 & 8

Chapter 6
Series Circuits
Series Circuit
Has only one path for electrons to flow.
Load
Voltage Source
Load
Load
Voltage
Total voltage equals the sum of the voltage
drops – Kirchoff’s voltage law
Voltage Drop # 1
ET = E1 + E2 + E3 + E…+ EN
Total Voltage
Voltage Drop # 2
Current
Since there is only one path for electrons to flow
- The current is equal throughout the circuit. The
current must be the same at any place in the
circuit.
Current at place # 1
IT = I1 = I2 = I3 = I…= IN
Total Current
Current at place # 2
Resistance
Total resistance is equal to the sum of the
individual resistance values
Resistance # 1
RT = R1 + R2 + R3 + R…+ RN
Total
Resistance
Resistance # 2
Power
Total Power consumed in a series circuit is equal
to the source voltage multiplied by the circuit
current.
Total Voltage
PT = E T x I T
Total Power
Total Current
Ohm’s Law
Can be applied to any individual component of a
series circuit.
If you know two values you can find the third.
I =
V
R
R=
V
I
V = I x R
Troubleshooting
Open circuit (break)
Check switches
Check source voltage
Check fuse
Check voltage drops
Short circuit (no resistance)