# Parallel And Series Wiring Diagrams

By | January 24, 2023

### Parallel and Series Wiring Diagrams

Electrical circuits can be wired in either a parallel or series configuration. The type of wiring used depends on the desired outcome. In a parallel circuit, the load devices are connected across the power source, while in a series circuit, the load devices are connected in a single path between the power source and the ground.

### Parallel Circuits

In a parallel circuit, the current is divided equally among the load devices. This means that if one load device fails, the other load devices will continue to function. Parallel circuits are often used in applications where it is important to have a backup in case one of the load devices fails. For example, a parallel circuit could be used to power a computer and a monitor. If the monitor fails, the computer will continue to function.

The following diagram shows a parallel circuit with three light bulbs connected to a battery.

The current flows from the battery, through the switch, and then through each of the light bulbs. The current then returns to the battery through the ground.

The total resistance of a parallel circuit is less than the resistance of any of the individual load devices. This means that the current flowing through a parallel circuit is greater than the current flowing through any of the individual load devices.

### Series Circuits

In a series circuit, the current is the same through all of the load devices. This means that if one load device fails, the entire circuit will fail. Series circuits are often used in applications where it is important to have all of the load devices functioning in order for the circuit to work. For example, a series circuit could be used to power a car's headlights. If one headlight fails, the other headlight will also fail.

The following diagram shows a series circuit with three light bulbs connected to a battery.

The current flows from the battery, through the switch, and then through each of the light bulbs. The current then returns to the battery through the ground.

The total resistance of a series circuit is greater than the resistance of any of the individual load devices. This means that the current flowing through a series circuit is less than the current flowing through any of the individual load devices.

### Choosing Between Parallel and Series Circuits

The decision of whether to use a parallel or series circuit depends on the desired outcome. If it is important to have a backup in case one of the load devices fails, a parallel circuit should be used. If it is important to have all of the load devices functioning in order for the circuit to work, a series circuit should be used.

### Conclusion

Parallel and series circuits are two different ways of wiring electrical devices. The type of wiring used depends on the desired outcome. Parallel circuits are often used in applications where it is important to have a backup in case one of the load devices fails. Series circuits are often used in applications where it is important to have all of the load devices functioning in order for the circuit to work.

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