Difference between revisions of "Charge Carrier"
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| − | *In a copper wire, the free [[electron]]s act as | + | *In a [[copper]] [[wire]], the free [[electron]]s act as '''charge carriers'''. |
| − | *In a solution of saltwater, the sodium and chloride | + | *In a [[solution]] of saltwater, the [[Sodium Ion|sodium]] and [[Chloride Ion|chloride]] [[ion]]s act as '''charge carriers'''. |
Latest revision as of 08:41, 23 May 2024
Key Stage 5
Meaning
Charge carriers are charged particles that move through a substance when a potential difference]] (pd) is applied across it.
About Charge Carriers
- In metals, the charge carriers are electrons.
- In electrolytes, the charge carriers are ions.
- The movement of charge carriers constitutes an electric current.
- In semiconductors, charge carriers include both electrons and holes.
- The concentration and mobility of charge carriers affect the electrical conductivity of a material.
Charge carriers are fundamental in the operation of electronic devices such as transistors and diodes.
- Understanding charge carrier dynamics is crucial for designing and optimizing electrical and electronic systems.