clark standard cell
Definition
Noun: A Clark standard cell is a specific type of electrochemical cell (voltaic cell) that was historically used as a primary standard for measuring and calibrating electromotive force (EMF), or voltage.
Usage
The term is used in historical and technical contexts to refer to this obsolete scientific instrument. * Early electrical laboratories used a Clark standard cell to calibrate their voltmeters. * The EMF of a Clark standard cell is temperature-dependent, which was one of its limitations.
Advanced Usage
- The cell is named for its inventor, the English engineer Josiah Latimer Clark.
- It was superseded by the more stable and temperature-independent Weston standard cell.
Variants and Related Words
- Standard cell (n): A broader term for any electrochemical cell used as a voltage standard.
- Voltaic cell (n): A general term for a cell that produces electrical energy from chemical reactions.
- Weston standard cell (n): The modern, cadmium-based standard cell that replaced the Clark cell.
Synonyms
- Clark cell (n): A direct synonym.
- Voltage standard cell (n): A descriptive synonym.
Noun
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a form of voltaic cell once used as a standard for electromotive force
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