PD

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Define Potential difference
the energy per unit charge transferred from electrical to other forms. (Work done per unit charge)
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What is the equation defining potential difference
.
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Whta is the unit for potential difference
(after Alessandro Volta).
3 of 9
Define a voltage
1 volt is the potential difference across a component when 1Joule of energy is transferred per unit (coulomb) charge passing through the component
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What is the SI base unit for voltage
.
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Define electomotive force
Electromotive force is the energy transferred from some form to electrical energy per unit charge to drive charge round a complete circuit.
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Give examples of sources of E.M.F
Sources of E.M.F include solar cells, dynamos and thermocouples.
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Explain the distinction between e.m.f and p.d. in terms of energy transfer
P.D. is used to describe when work is done by the charge carriers. So the charge carriers are losing energy as they pass through the component. E.M.F describes when work is done to the charges
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What is the equation for energy transfer (p.d. and emf)
.
9 of 9

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Card 2

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What is the equation defining potential difference

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Card 3

Front

Whta is the unit for potential difference

Back

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Card 4

Front

Define a voltage

Back

Preview of the front of card 4

Card 5

Front

What is the SI base unit for voltage

Back

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