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  2. Poles of astronomical bodies - Wikipedia

    en.wikipedia.org/wiki/Poles_of_astronomical_bodies

    The poles of astronomical bodies are determined based on their axis of rotation in relation to the celestial poles of the celestial sphere. Astronomical bodies include stars, planets, dwarf planets and small Solar System bodies such as comets and minor planets (e.g., asteroids), as well as natural satellites and minor-planet moons.

  3. Potential-induced degradation - Wikipedia

    en.wikipedia.org/wiki/Potential-induced_degradation

    This effect may cause power loss of up to 30 percent. [1] The cause of the harmful leakage currents, besides the structure of the solar cell, is the voltage of the individual photovoltaic (PV) modules to the ground. In most ungrounded PV systems, the PV modules with a positive or negative voltage to the ground are exposed to PID.

  4. Passive sign convention - Wikipedia

    en.wikipedia.org/wiki/Passive_sign_convention

    Illustration of the "reference directions" of the current (), voltage (), and power () variables used in the passive sign convention.If positive current is defined as flowing into the device terminal which is defined to be positive voltage, then positive power (big arrow) given by the equation = represents electric power flowing into the device, and negative power represents power flowing out.

  5. Polarity symbols - Wikipedia

    en.wikipedia.org/wiki/Polarity_symbols

    Diagram showing positive tip polarity on the left and negative tip polarity on the right. To read diagram: The center positive drawing on the left indicates that the center (also known as the tip) of the output plug is positive (+) and the barrel (ring) of the output plug is negative (−).

  6. Direct current - Wikipedia

    en.wikipedia.org/wiki/Direct_current

    To save weight and wire, often the metal frame of the vehicle is connected to one pole of the battery and used as the return conductor in a circuit. Often the negative pole is the chassis "ground" connection, but positive ground may be used in some wheeled or marine vehicles. In a battery electric vehicle, there are usually two separate DC systems.

  7. Ground and neutral - Wikipedia

    en.wikipedia.org/wiki/Ground_and_neutral

    A ground connection that is missing or of inadequate capacity may not provide the protective functions as intended during a fault in the connected equipment. Extra connections between ground and circuit neutral may result in circulating current in the ground path, stray current introduced in the earth or in a structure, and stray voltage.

  8. Tom Hardy Offers to Pay Over $300,000 of Crew’s Wages ... - AOL

    www.aol.com/tom-hardy-offers-pay-over-143932689.html

    Heroes don’t always wear capes — sometimes they’re covered in venom … at least if you’re Tom Hardy.. The actor, 47, reportedly offered to pay £250,000 — or approximately $315,000 ...

  9. Ground (electricity) - Wikipedia

    en.wikipedia.org/wiki/Ground_(electricity)

    The current density, and power dissipated, increases the closer one gets to the ground terminal at the base of the antenna, [14] so the radial ground system can be thought of as providing a higher conductivity medium, copper, for the ground current to flow through, in the parts of the ground carrying high current density, to reduce power losses.

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