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  2. Atmospheric electricity - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_electricity

    Atmospheric electricity describes the electrical charges in the Earth's atmosphere (or that of another planet ). The movement of charge between the Earth's surface, the atmosphere, and the ionosphere is known as the global atmospheric electrical circuit. Atmospheric electricity is an interdisciplinary topic with a long history, involving ...

  3. Three-phase electric power - Wikipedia

    en.wikipedia.org/wiki/Three-phase_electric_power

    Three-phase transformer with four-wire output for 208Y/120 volt service: one wire for neutral, others for A, B and C phases. Three-phase electric power (abbreviated 3ϕ [1]) is a common type of alternating current (AC) used in electricity generation, transmission, and distribution. [2] It is a type of polyphase system employing three wires (or ...

  4. Nancy Pelosi - Wikipedia

    en.wikipedia.org/wiki/Nancy_Pelosi

    My leadership is recognized by many around the country, and that is why I'm able to attract the support that I do." [107] In November 2017, after Pelosi called for John Conyers 's resignation over allegations of harassment, she convened the first in a series of planned meetings on strategies to address reforming workplace policies in the wake ...

  5. Polarity symbols - Wikipedia

    en.wikipedia.org/wiki/Polarity_symbols

    The commonly used symbol denoting the polarity of a device or adapter consists of a black dot with a line leading to the right and a broken circle (like the letter "C") surrounding the dot and with a line leading to the left. At the ends of the lines leading right and left are found a plus sign (+), meaning positive, also sometimes referred to ...

  6. Triboelectric effect - Wikipedia

    en.wikipedia.org/wiki/Triboelectric_effect

    e. The triboelectric effect (also known as triboelectricity, triboelectric charging, triboelectrification, or tribocharging) describes electric charge transfer between two objects when they contact or slide against each other. It can occur with different materials, such as the sole of a shoe on a carpet, or between two pieces of the same material.

  7. Electric charge - Wikipedia

    en.wikipedia.org/wiki/Electric_charge

    Electric charge (symbol q, sometimes Q) is the physical property of matter that causes it to experience a force when placed in an electromagnetic field. Electric charge can be positive or negative. Like charges repel each other and unlike charges attract each other. An object with no net charge is referred to as electrically neutral.

  8. Barack Obama 2008 presidential primary campaign - Wikipedia

    en.wikipedia.org/wiki/Barack_Obama_2008...

    After a Clinton victory on June 1 in the Puerto Rico primary, only one more day of primaries remained. June 3 saw the final votes of the primary season in Montana, which Obama won by 58-40 percent, and South Dakota, which Clinton won by 55-45 percent.

  9. Orders of magnitude (charge) - Wikipedia

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

    10 −3: milli-(mC) 1 × 10 −3 C: Charge in typical power supply capacitors [citation needed] 2.1 × 10 −3 C: Charge in CH85-2100-105 high voltage capacitor for microwaves: 10 0: C: 1 × 10 0 C: Two like charges, each of 1 C, placed one meter apart, would experience a repulsive force of approximately 9 × 10 9 N: 3.16 × 10 0 C