• Thumbnail for Direct current
    Direct current (DC) is one-directional flow of electric charge. An electrochemical cell is a prime example of DC power. Direct current may flow through...
    16 KB (1,922 words) - 11:12, 11 May 2025
  • Thumbnail for High-voltage direct current
    A high-voltage direct current (HVDC) electric power transmission system uses direct current (DC) for electric power transmission, in contrast with the...
    78 KB (10,003 words) - 16:43, 14 May 2025
  • Thumbnail for Transcranial direct-current stimulation
    Transcranial direct current stimulation (tDCS) is a form of neuromodulation that uses constant, low direct current delivered via electrodes on the head...
    54 KB (6,125 words) - 05:45, 1 May 2025
  • Thumbnail for Electric current
    the dynamo type. Alternating current can also be converted to direct current through use of a rectifier. Direct current may flow in a conductor such as...
    36 KB (4,356 words) - 00:50, 16 May 2025
  • Thumbnail for DC motor
    motor that uses direct current (DC) to produce mechanical force. The most common types rely on magnetic forces produced by currents in the coils. Nearly...
    17 KB (2,261 words) - 21:03, 19 February 2025
  • In telecommunications, a neutral direct-current telegraph system (single-current system, single-current transmission system, single-Morse system) is a...
    969 bytes (128 words) - 23:40, 15 September 2024
  • Thumbnail for Direct-current plasma
    Direct-current plasma (DCP) is a type of plasma source used for atomic emission spectroscopy that utilizes three electrodes to produce a plasma stream...
    4 KB (430 words) - 22:09, 23 August 2022
  • Thumbnail for Alternating current
    Alternating current (AC) is an electric current that periodically reverses direction and changes its magnitude continuously with time, in contrast to direct current...
    48 KB (5,997 words) - 11:33, 14 May 2025
  • vehicle DirectX, a proprietary dynamic media platform Direct current, a direct flow of electricity Direct examination, the in-trial questioning of a witness...
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  • Thumbnail for Electric generator
    current which changes direction with each 180° rotation, an alternating current (AC). However many early uses of electricity required direct current (DC)...
    34 KB (3,971 words) - 21:30, 1 May 2025
  • Thumbnail for Pulsed DC
    Pulsed DC (PDC) or pulsating direct current is a periodic current which changes in value but never changes direction. Some authors use the term pulsed...
    5 KB (702 words) - 23:08, 14 February 2025
  • Thumbnail for Voltage
    Voltage (redirect from Volts direct current)
    alternating current (AC) there is a difference between instantaneous voltage and average voltage. Instantaneous voltages can be added for direct current (DC)...
    25 KB (2,930 words) - 16:25, 2 May 2025
  • Thumbnail for War of the currents
    street lighting running on high-voltage alternating current (AC), and large-scale low-voltage direct current (DC) indoor incandescent lighting being marketed...
    70 KB (9,288 words) - 13:40, 18 March 2025
  • Thumbnail for Glow discharge
    current is increased still further, other factors come into play and an arc discharge begins. The simplest type of glow discharge is a direct-current...
    22 KB (2,855 words) - 23:46, 2 December 2024
  • Thumbnail for Multimeter
    Avometer had a sensitivity of 60 Ω/V, three direct current ranges (12 mA, 1.2 A, and 12 A), three direct voltage ranges (12, 120, and 600 V or optionally...
    52 KB (6,838 words) - 19:11, 22 April 2025
  • electronic circuit or electromechanical device that converts a source of direct current (DC) from one voltage level to another. It is a type of electric power...
    24 KB (2,873 words) - 23:49, 19 April 2025
  • Thumbnail for Residual-current device
    smooth direct current; For residual pulsating rectified direct current which results from two or more phases; For residual smooth direct currents, whether...
    54 KB (7,573 words) - 15:07, 28 April 2025
  • Thumbnail for Eddy current
    In electromagnetism, an eddy current (also called Foucault's current) is a loop of electric current induced within conductors by a changing magnetic field...
    31 KB (3,538 words) - 23:59, 7 May 2025
  • Thumbnail for Cardioversion
    Wafae BG, da Silva RM, Veloso HH (2019). "Propofol for sedation for direct current cardioversion". Annals of Cardiac Anaesthesia. 22 (2): 113–121. doi:10...
    20 KB (2,317 words) - 22:37, 11 May 2025
  • Thumbnail for Alternator
    naturally produced alternating current, but since there was little use for it, it was normally converted into direct current via the addition of a commutator...
    26 KB (2,882 words) - 08:31, 27 April 2025
  • Thumbnail for Pacific DC Intertie
    from the Pacific Northwest to the Los Angeles area using high voltage direct current (HVDC). The line capacity is 3.1 gigawatts, which is enough to serve...
    16 KB (1,919 words) - 03:03, 30 April 2025
  • A constant current (steady current, time-independent current, stationary current) is a type of direct current (DC) that does not change its intensity with...
    4 KB (430 words) - 10:30, 19 June 2024
  • Direct Currents is the name of several promotional features by DC Comics, including a long-running newsletter. Direct Currents was first used as the name...
    16 KB (418 words) - 13:12, 18 December 2022
  • Thumbnail for Dynamo
    A dynamo is an electrical generator that creates direct current using a commutator. Dynamos employed electromagnets for self-starting by using residual...
    28 KB (3,470 words) - 22:10, 15 May 2025
  • Thumbnail for Current clamp
    Hall effect and vane type clamps can also measure direct current (DC). A common form of current clamp comprises a split ring made of ferrite or soft...
    9 KB (1,245 words) - 00:40, 19 February 2025
  • Thumbnail for Current density
    electromagnetism, current density is the amount of charge per unit time that flows through a unit area of a chosen cross section. The current density vector...
    23 KB (2,812 words) - 18:06, 6 January 2025
  • Direct-to-video or straight-to-video refers to the release of a film, television series, short or special to the public immediately on home video formats...
    30 KB (3,270 words) - 07:44, 1 May 2025
  • Thumbnail for Four-current
    general relativity, the four-current (technically the four-current density) is the four-dimensional analogue of the current density, with units of charge...
    6 KB (809 words) - 19:25, 29 September 2024
  • in the first twenty years of the twentieth century. Direct current (DC) traction units use current drawn from a third rail, fourth rail, ground-level power...
    7 KB (830 words) - 14:55, 3 February 2025
  • Conductive coupling passes the full spectrum of frequencies including direct current. Such coupling may be achieved by a wire, resistor, or common terminal...
    4 KB (596 words) - 00:19, 5 May 2025