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glossary|
c-dglos.htm*
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Cathode: In a diode, the electrode that must be negative with respect to the anode (plate) to allow the diode to conduct.
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Capacitance:The property of a capacitor that determines the quantity of electric energy that it can store.
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Capacitor: A device consisting of two conducting surfaces separated by an insulator and having the ability of storing electric energy. Also called a condenser.
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Charge:The number of electrons held on the capacitor plates. The act of forcing electrons onto the capacitor plates.
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Charged:The condition of a capacitor which has the full charge it can receive from a given applied voltage.
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Coefficient of coupling (k): A numerical rating between 0 and 1 that specifies the degree of magnetic coupling between two circuits. Maximum coupling is 1 and no coupling is 0.
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Counter Electromotive Force (CEMF)The voltage induced in a wire by self-induction which opposes the applied voltage. Also called back emf.
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Charge Controller: A device used in Renewable Energy systems to prevent overcharging the battery while still allowing it to reach full charge.
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Charge Rate: The battery charging current, in amperes, applied to a battery bank.
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Circuit (Series): A circuit which has only one path for the current to flow. Batteries arranged in series are connected with the negative of the first to the positive of the second, negative of the second to the positive of the third, etc. If two 12 volt batteries of 100 ampere-hours capacity are connected in series, the circuit voltage is equal to the sum of the two batter voltages, or 24 volts, and the ampere-hour capacity of the combination is 100 ampere hours.
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Circuit (Parallel): A circuit which provides more than one path for current flow. A parallel arrangement of batteries (of like voltage and capacity) would have all positive terminals connected to a conductor and all negative terminals connected to another conductor. If two 12 volt batteries of 100 ampere-hour capacity each are connected in parallel, the circuit voltage is 12 volts, and the ampere-hour capacity of the combination is 200 ampere-hours.
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Current: The rate of flow of electrons in a circuit, measured in amperes.
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Cycle: In a battery, one discharge plus one recharge equals one cycle.
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