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Voltage, otherwise known as electrical potential difference (denoted ∆V and measured in volts) is the difference in electric potential between two points (adapted from Wikipedia). Voltage can be constant (DC) or varying (AC).

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How does a 24 volt aircraft battery power a 28 volt bus?

Your 12 volt car battery voltage is about 14 volts when the engine is running. … Your 24 volt aircraft battery and various busses,voltage will be about 28 volts when on charge, engines running, external power in etc. …
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