Difference between revisions of "Direct Current"
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: '''Direct current''' is needed to charge a [[Electrical Cell|cell]] or [[battery]]. | : '''Direct current''' is needed to charge a [[Electrical Cell|cell]] or [[battery]]. | ||
: '''Direct current''' is used in [[electrolysis]]. | : '''Direct current''' is used in [[electrolysis]]. | ||
+ | : A constant '''direct current''' cannot be used in a [[transformer]]. | ||
===Examples=== | ===Examples=== |
Revision as of 15:45, 1 March 2019
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.
- A constant direct current cannot be used in a transformer.
Examples
This is a constant direct current from a 3V battery. | This is a fluctuating direct current. |
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. |