Difference between revisions of "Charge Carrier"
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===About Charge Carriers=== | ===About Charge Carriers=== | ||
| − | *In [[ | + | *In [[metal]]s, the '''charge carriers''' are [[electron]]s. |
*In [[electrolyte]]s, the '''charge carriers''' are [[ion]]s. | *In [[electrolyte]]s, the '''charge carriers''' are [[ion]]s. | ||
*The movement of '''charge carriers''' constitutes an [[Electrical Current|electric current]]. | *The movement of '''charge carriers''' constitutes an [[Electrical Current|electric current]]. | ||
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'''Charge carriers''' are fundamental in the operation of electronic devices such as [[transistor]]s and [[diode]]s. | '''Charge carriers''' are fundamental in the operation of electronic devices such as [[transistor]]s and [[diode]]s. | ||
*Understanding '''charge carrier''' dynamics is crucial for designing and optimizing electrical and electronic systems. | *Understanding '''charge carrier''' dynamics is crucial for designing and optimizing electrical and electronic systems. | ||
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===Examples=== | ===Examples=== | ||
*In a copper wire, the free [[electron]]s act as [[Electrical Charge|charge]] carriers. | *In a copper wire, the free [[electron]]s act as [[Electrical Charge|charge]] carriers. | ||
*In a solution of saltwater, the sodium and chloride ions act as [[Electrical Charge|charge]] carriers. | *In a solution of saltwater, the sodium and chloride ions act as [[Electrical Charge|charge]] carriers. | ||
Revision as of 08:39, 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.