voltage

Voltage, also known as electric pressure, electric tension, or (electric) potential difference, is the difference in electric potential between two points. In a static electric field, it corresponds to the work needed per unit of charge to move a test charge between the two points. In the International System of Units, the derived unit for voltage is named volt.: 166 The voltage between points can be caused by the build-up of electric charge (e.g., a capacitor), and from an electromotive force (e.g., electromagnetic induction in generator, inductors, and transformers). On a macroscopic scale, a potential difference can be caused by electrochemical processes (e.g., cells and batteries), the pressure-induced piezoelectric effect, and the thermoelectric effect.
A voltmeter can be used to measure the voltage between two points in a system. Often a common reference potential such as the ground of the system is used as one of the points. A voltage can represent either a source of energy or the loss, dissipation, or storage of energy.

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  3. scubaginty

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  4. Silver estate

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  5. J

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  6. N

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  7. bwanamdevu

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  9. W

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  11. V

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  12. M

    MG5 LR 1)Low voltage battery maintenance 2)Jacking car with trolley jack sill adapter

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  16. J

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  17. M

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  18. E

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  20. johnnyallan

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