Contents
Key Stage 4
Meaning
Direct current (DC)is when electricity only flows in one direction.
About Direct Current
- Direct current is produced by electrical cells, batteries and dynamos.
- Direct current can be made from an alternating current using a diode.
- Direct current is needed to charge a cell or battery.
- Direct current is used in electrolysis.
Examples
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| This is a constant direct current from a 3V battery. | This is a fluctuating direct current. |
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| This is the direct current caused by mains electricity being passed through a diode. | This is the direct current caused by mains electricity being passed through a Rectifier which is a set of diode. |