Write the sequence of energy A battery when used in an electric circuit.
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Essentials. A battery is a device that stores chemical energy and converts it to electrical energy. The chemical reactions in a battery involve the flow of electrons from one material (electrode) to another, through an external circuit....
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An electric circuit needs a source of energy (a cell or battery).
Cells have positive and negative terminals.
A circuit is a complete pathway for electricity.
The circuit must be closed in order for a device to work, such as a bulb which lights up.
We can say that an electric circuit is a closed system which transfers electrical energy.
A circuit is made up of various components, which we will look at in more detail.
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