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  2. Current–voltage characteristic - Wikipedia

    en.wikipedia.org/wiki/Current–voltage...

    A current–voltage characteristic or I–V curve (current–voltage curve) is a relationship, typically represented as a chart or graph, between the electric current through a circuit, device, or material, and the corresponding voltage, or potential difference, across it.

  3. Orders of magnitude (current) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(current)

    2.7V, Ultracapacitor short circuit current [9] 10 4: 25 kA Lorentz force can crusher pinch [10] 30 kA Typical lightning strike 10 5: 100 kA Low range of Birkeland current that creates Earth's aurorae 140 kA "Sq" current of one daytime vortex within the ionospheric dynamo region: 180 kA Typical current used in electric arc furnace for ...

  4. Power amplifier classes - Wikipedia

    en.wikipedia.org/wiki/Power_amplifier_classes

    The class H amplifier can actually be thought of as two amplifiers in series. In the schematic example shown by the figure, +/- 40 V rail amplifiers can produce about 100 watts continuous into an 8-ohm load. If the output signal is operating below 40 volts, the amplifier only has the losses associated with a 100 W amplifier.

  5. IEC 60309 - Wikipedia

    en.wikipedia.org/wiki/IEC_60309

    The standard includes preferred current ratings and wire gauges for both International (deemed Series I) and North American (deemed Series II) applications. Series I preferred current ratings (in amps) are: 16, 32, 63, 125, 250, 400, 630 and 800, with wire gauges specified as mm 2 .

  6. Electrical resistivity and conductivity - Wikipedia

    en.wikipedia.org/wiki/Electrical_resistivity_and...

    In a superconductor, the resistance drops abruptly to zero when the material is cooled below its critical temperature. In a normal conductor, the current is driven by a voltage gradient, whereas in a superconductor, there is no voltage gradient and the current is instead related to the phase gradient of the superconducting order parameter. [15]

  7. High-voltage direct current - Wikipedia

    en.wikipedia.org/wiki/High-voltage_direct_current

    Long distance HVDC lines carrying hydroelectricity from Canada's Nelson River to this converter station where it is converted to AC for use in southern Manitoba's grid. A high-voltage direct current (HVDC) electric power transmission system uses direct current (DC) for electric power transmission, in contrast with the more common alternating current (AC) transmission systems. [1]

  8. GeForce RTX 40 series - Wikipedia

    en.wikipedia.org/wiki/GeForce_40_series

    The GeForce 40 series is a family of consumer graphics processing units (GPUs) developed by Nvidia as part of its GeForce line of graphics cards, succeeding the GeForce 30 series. The series was announced on September 20, 2022, at the GPU Technology Conference , and launched on October 12, 2022, starting with its flagship model , the RTX 4090 ...

  9. Operational amplifier - Wikipedia

    en.wikipedia.org/wiki/Operational_amplifier

    1970: First high-speed, low-input current FET design. In the 1970s high speed, low-input current designs started to be made by using FETs. These would be largely replaced by op amps made with MOSFETs in the 1980s. LH0033CG: a high speed hybrid IC op amp. 1972: Single sided supply op amps being produced.