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Everything > Science & Technology > Electronics |
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charge |
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inverting diode |
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magnetic field |
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inductance |
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capacitance |
In a mathematical description of a circuit, Q stands for charge, which is usually produced by collections of electrons. When charge moves through a circuit it becomes electric current. Charge will move through a circuit only when an electric field exists within the circuit, which can result from the application of a voltage source, such as a battery.