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The unit of measure of electric current. Electric current is measured by the number of electrons that flow past a given point in a circuit in 1 second.
Metal conductors, usually copper or aluminum, of large size utilized to transmit large blocks of power.
A device capable of storing electric energy. It is basically constructed of two conductor materials separated by an insulator.
Electromotive force (emf)
The force which tends to produce an electric current in a circuit. The common unit of electromotive force is the volt.
The number of cycles of an alternating current completed in a certain period of time, usually 1 second.
A conducting connection, either intentional or accidental, permitting current to flow between an electric circuit or equipment and the earth.
Any current in excess of the ampacity of equipment or conductor. It may result from overload, short circuit, or ground fault.
The relationship between the active power (watts) and the voltamperes in any particular ac circuit. it is defined as the ratio of the total active power to the total voltamperes. It is also numerically equal to the cosine of the angle of phase difference between the total circuit voltage and current.
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