Electricity
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9 Terms
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Current
The rate of flow of charge
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Conventional Current
Electrons flow from the positive terminal to the negative terminal of a cell
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Delocalised electrons
Charge carriers in metals
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Voltage
Energy per unit charge
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Potential difference
Energy lost per unit charge
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Emf (electromotive force)
Energy gained per charge
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Resistance
Opposes the flow of charge
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Kirchhoff's 1st Law:
The sum of the currents entering any point in a circuit is equal to the sum of the currents leaving that point.
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Kirchhoff's 2nd Law:
In any closed loop in a circuit, the sum of the emf in the loop is equal to the sum of potential difference around that loop.