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  2. Voltmeter - Wikipedia

    en.wikipedia.org/wiki/Voltmeter

    Demonstration analog voltmeter. A voltmeter is an instrument used for measuring electric potential difference between two points in an electric circuit.It is connected in parallel.

  3. Electrical measurements - Wikipedia

    en.wikipedia.org/wiki/Electrical_measurements

    Ammeter 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.

  4. Calibration - Wikipedia

    en.wikipedia.org/wiki/Calibration

    The formal definition of calibration by the International Bureau of Weights and Measures (BIPM) is the following: "Operation that, under specified conditions, in a first step, establishes a relation between the quantity values with measurement uncertainties provided by measurement standards and corresponding indications with associated measurement uncertainties (of the calibrated instrument or ...

  5. Test light - Wikipedia

    en.wikipedia.org/wiki/Test_light

    Neon test lamp for line voltages Non-Contact AC Voltage Detector. A test light, test lamp, voltage tester, or mains tester is a piece of electronic test equipment used to determine the presence of electricity in a piece of equipment under test.

  6. Wattmeter - Wikipedia

    en.wikipedia.org/wiki/Wattmeter

    Wattmeter. The wattmeter is an instrument for measuring the electric active power (or the average of the rate of flow of electrical energy) in watts of any given circuit. ...

  7. Thermoelectric effect - Wikipedia

    en.wikipedia.org/wiki/Thermoelectric_effect

    The thermoelectric effect is the direct conversion of temperature differences to electric voltage and vice versa via a thermocouple. [1] A thermoelectric device creates a voltage when there is a different temperature on each side.

  8. Simon Cowell - Wikipedia

    en.wikipedia.org/wiki/Simon_Cowell

    Simon Phillip Cowell (/ ˈ k aʊ əl /; born 7 October 1959) is an English television personality, entrepreneur, and record executive.He has judged on the British television talent competition shows Pop Idol (2001–2003), The X Factor UK (2004–2010, 2014–2018), and Britain's Got Talent (2007–present), as well as the American television talent competition shows American Idol (2002–2010 ...

  9. Tensiometer (surface tension) - Wikipedia

    en.wikipedia.org/wiki/Tensiometer_(surface_tension)

    In surface science, a tensiometer is a measuring instrument used to measure the surface tension (γ) of liquids or surfaces.Tensiometers are used in research and development laboratories to determine the surface tension of liquids like coatings, lacquers or adhesives.