define voltage and current
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Current is the rate at which electric charge flows past a point in a circuit. In other words, current is the rate of flow of electric charge. Voltage, also called electromotive force, is the potential difference in charge between two points in an electrical field.
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Voltage-- It is the pressure from an electrical circuit's power source that pushes charged electrons through a conducting loop, enabling them to do work such as illuminating a light. In brief, voltage equals to pressure, and it is measured in volts (V).
Current-- A flow of electricity which results from the proper directional movement of electrically charged particles.
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