The current through a conductor is directly proportional to the p.d. across it, provided that physical conditions remain constant.
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Potential difference
Measured across a component. It is the energy transferred per unit charge by the charges passing through the component. Measured in volts or joules per coulomb.
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Electro magnetic force
Of a supply of energy gained per unit charge by charges passing through the supply, when a form of energy is transferred to electric energy carried by charges. Measured in volts or joules per coulomb.
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Kilowatt-hour (kWh)
1000 watts for 3600 seconds (360000 J)
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Kirchhoff’s first law
Charge is always conserved. It cannot
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Other cards in this set
Card 2
Front
Measured across a component. It is the energy transferred per unit charge by the charges passing through the component. Measured in volts or joules per coulomb.
Back
Potential difference
Card 3
Front
Of a supply of energy gained per unit charge by charges passing through the supply, when a form of energy is transferred to electric energy carried by charges. Measured in volts or joules per coulomb.
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