Series DC Circuit

All components of the series circuit are on one line from the power supply and return.

1. The voltage total is equal to the sum of the series voltage drops in the circuit :

Vs = VR1 + VR2 = VR3

2. The same current must flow through all component.

IT = IR1 = IR2 = IR3

3. The resistance total in a series circuit is the sum of the resistance in the circuit.

RT = R1 + R2 + R3....

Example : Series DC Circuit Analysis:

Voltage Divider

1. A voltage divider is used in a circuit where the resistor are connected in a series.

2. The value of the drop voltage can be easily calculated using the voltage divider formula without knowing the

current.

3. Example :

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