Difference between revisions of "Resistor"
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| − | A [[Electrical Component|component]] in an [[circuit|electrical circuit]] which makes it difficult to [[electricity]] to pass through it. | + | ==Key Stage 3== |
| + | ===Meaning=== | ||
| + | [[File:Resistor.png|right|300px|thumb|A picture of a [[resistor]].]] | ||
| + | A [[resistor]] is a [[Electrical Component|component]] in an [[circuit|electrical circuit]] which makes it difficult to [[electricity]] to pass through it. | ||
| + | |||
| + | ===About Resistors=== | ||
| + | : A [[resistor]] is a [[Electrical Component|component]] designed to have a particular [[Electrical Resistance|resistance]]. | ||
| + | : [[Resistor]]s are added to [[circuit]]s to control the [[Electrical Current|current]] which will pass through for a certain [[Potential Difference|potential difference]]. | ||
| + | : The greater the [[Electrical Resistance|resistance]] of a [[resistor]] the smaller the [[Electrical Current|current]] will be. | ||
| + | : The [[Electrical Resistance|resistance]] of a [[resistor]] can be found by attaching an [[ammeter]] in [[Series Circuit|series]] with the [[resistor]] and a [[voltmeter]] in [[Parallel Circuit|parallel]] with the [[resistor]]. | ||
| + | : All [[electrical component|component]]s in a [[circuit]] act as [[resistor]]s, including [[wire]]s. The longer a [[wire]] the more [[Electrical Resistance|resistance]] it will have to a [[Electrical Current|current]]. | ||
Revision as of 13:26, 27 February 2019
Key Stage 3
Meaning
A picture of a resistor.
A resistor is a component in an electrical circuit which makes it difficult to electricity to pass through it.
About Resistors
- A resistor is a component designed to have a particular resistance.
- Resistors are added to circuits to control the current which will pass through for a certain potential difference.
- The greater the resistance of a resistor the smaller the current will be.
- The resistance of a resistor can be found by attaching an ammeter in series with the resistor and a voltmeter in parallel with the resistor.
- All components in a circuit act as resistors, including wires. The longer a wire the more resistance it will have to a current.