# Parallel Circuit Applications

## Current in Parallel Circuits

### In previous sections the concept of Current flow was discussed. Current is the flow of charge through a circuit and is measured using an Ammeter. The following diagram shows a simple parallel circuit with several Ammeters placed throughout:- ## Voltage in Parallel Circuits

### In previous sections the concept of Voltage was discussed. Voltage is the Energy per unit Charge supplied by the battery and is measured using a Voltmeter. The following diagram shows a simple Series circuit with several Voltmeters placed throughout:- ## Resistance in Parallel Circuits

### In previous sections the concept of Resistance was discussed. Resistance is a measure of how difficult it is for Current to flow. It would be expected that adding Resistors (even in parallel) would cause the total Resistance to increase, however this is not the case. By adding Resistors in series, the total Resistance is lowered. If the traffic analogy is once again used:- ### For a parallel circuit, the Resistance can be found using the following formula:- 