Question:
In general, fluid friction damping is not employed in indicating instruments although one can find its use in:
In general, fluid friction damping is not employed in indicating instruments although one can find its use in:
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Fluid friction damping is typically used in instruments where precise measurement is crucial, such as in voltmeters.
Updated On: May 4, 2025
- Dynamometer wattmeter
- Hot-wire ammeter
- Induction type energy meter
- Kelvin electrostatic voltmeter
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The Correct Option is D
Solution and Explanation
Kelvin electrostatic voltmeter uses fluid friction damping. This type of damping is typically used in precise measurement instruments, such as voltmeters, that require high accuracy in response times, particularly when measuring very small potential differences.
Thus, the correct answer is Kelvin electrostatic voltmeter.
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