GCSE Physics

Uses for Resisitors

One use for a resistor is to control the current* flowing from one part of a circuit* to another.

Another use for a resistor comes from the fact that, by resisting a current, a resistor draws energy from a current and converts this energy into heat.

For example:

The red-hot element* of an electric fire is a resistor.
So too the white-hot filament of an electric lamp.

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