How is Electricity Measured? - Yahoo! Answers

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Katzensprung Katzensp...

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** How is Electricity Measured? **

Could i get a detailed answer explaining, or at least a site where it has a
detailed explanation?

· 6 years ago
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Raut N by Raut


Source: answers.yahoo.com/question/index?qid=20071023005049AA3fWdc


how is electricity measured


Electrical measurements - Wikipedia, the free encyclopedia

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** Electrical measurements **

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Ampere- and Voltmeter on a power supply

*Electrical measurements* are the methods, devices and calculations used to
measure electrical quantities. Measurement of electrical quantities may be
done to measure electrical parameters of a system. Using transducers,
physical properties such as temperature, pressure, flow, force, and many
others can be converted into electrical signals, which can then be
conveniently measured and recorded. High-precision laboratory measurements
of electrical quantities are used in experiments to determine fundamental
physical properties such as the charge of the electron or the speed of
light, and in the definition of the units for electrical measurements, with
precision in some cases on the order of a few parts per million. Less
precise measurements are required every day in industrial practice.
Electrical measurements are a branch of the science of metrology.

Measurable independent and semi-independent electrical quantities comprise:

· Voltage
· Electric current
· Electrical resistance and electrical conductance
· Electrical reactance and susceptance
· Magnetic flux
· Electrical charge by the means of electrometer
· Magnetic field by the means of Hall sensor
· Electric field
· Electrical power by the means of electricity meter
· S-matrix by the means of network analyzer (electrical)
· Electrical power spectrum by the means of spectrum analyzer

Measurable dependent electrical quantities comprise:

· Inductance
· Capacitance
· Electrical impedance defined as vector sum of electrical resistance and
electrical reactance
· Phase between current and voltage and related quality factor
· Electrical spectral density
· Electrical phase noise
· Electrical amplitude noise
· Transconductance
· Transimpedance
· Electrical power gain
· Voltage gain
· Current gain
· Frequency

*References[edit]*

· Lectures on electrical measurements
· List of measurable electrical units
·


Source: en.wikipedia.org/wiki/Electrical_measurements

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