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Monday, 3 August 2020

Circuits

What is a circuit?
- A circuit is a complete loop (circle) of electricity flowing around, ending, and starting at a power source. There are two main types of circuits; a parallel circuit and a series circuit. 

Example of a parallel circuit and a series circuit involving 2 batteries, 2 bulbs, and a switch:

Parallel circuit-



Series circuit-

                                

What is voltage?
- A volt is the amount of energy in the circuit. The volts can be measured using a voltmeter. In a series, the volts are shared with all the components, but in a parallel circuit, the voltage is the same everywhere.

An example of voltage in a series-

An example of a voltage in a parallel circuit-


What is current?
- Energy is measured in amps. A current shows how many amps are flowing in a circuit. We can measure the number of amps in a circuit by using an ammeter. The current in a series is the same everywhere but in a parallel circuit, the current is divided between the components.

Example with a series-


Example with a parallel circuit-


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