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  2. Circuit diagram - Wikipedia

    en.wikipedia.org/wiki/Circuit_diagram

    A circuit diagram (or: wiring diagram, electrical diagram, elementary diagram, electronic schematic) is a graphical representation of an electrical circuit. A pictorial circuit diagram uses simple images of components, while a schematic diagram shows the components and interconnections of the circuit using standardized symbolic representations.

  3. Load line (electronics) - Wikipedia

    en.wikipedia.org/wiki/Load_line_(electronics)

    Once a DC operating point is defined by the DC load line, an AC load line can be drawn through the Q point. The AC load line is a straight line with a slope equal to the AC impedance facing the nonlinear device, which is in general different from the DC resistance. The ratio of AC voltage to current in the device is defined by this line.

  4. True RMS converter - Wikipedia

    en.wikipedia.org/wiki/True_RMS_converter

    A big drawback is that it is low-impedance: that is, the power used to heat the thermistor comes from the circuit being measured. If the circuit being measured can support the heating current, then it is possible to make a post-measurement calculation to correct the effect, as the impedance of the heating element is known.

  5. Voltage multiplier - Wikipedia

    en.wikipedia.org/wiki/Voltage_multiplier

    Voltage multipliers can be used to generate a few volts for electronic appliances, to millions of volts for purposes such as high-energy physics experiments and lightning safety testing. The most common type of voltage multiplier is the half-wave series multiplier, also called the Villard cascade (but actually invented by Heinrich Greinacher ).

  6. File:Thermocouple circuit Ktype including voltmeter ...

    en.wikipedia.org/wiki/File:Thermocouple_circuit...

    The following other wikis use this file: Usage on anp.wikipedia.org तापयुग्म; Usage on cs.wikipedia.org Termočlánek; Usage on eu.wikipedia.org

  7. Voltmeter - Wikipedia

    en.wikipedia.org/wiki/Voltmeter

    For example, a meter with a sensitivity of 1000 ohms per volt would draw 1 milliampere at full scale voltage; if the full scale was 200 volts, the resistance at the instrument's terminals would be 200 000 ohms and at full scale, the meter would draw 1 milliampere from the circuit under test. For multi-range instruments, the input resistance ...

  8. Electrometer - Wikipedia

    en.wikipedia.org/wiki/Electrometer

    A modern electrometer is a highly sensitive electronic voltmeter whose input impedance is so high that the current flowing into it can be considered, for most practical purposes, to be zero. The actual value of input resistance for modern electronic electrometers is around 10 14 Ω, compared to around 10 10 Ω for nanovoltmeters. [9]

  9. Voltage regulator - Wikipedia

    en.wikipedia.org/wiki/Voltage_regulator

    Basic design principle and circuit diagram for the rotating-coil AC voltage regulator. This is an older type of regulator used in the 1920s that uses the principle of a fixed-position field coil and a second field coil that can be rotated on an axis in parallel with the fixed coil, similar to a variocoupler.