Currents in electrical circuits

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  • Created by: Pea_emma
  • Created on: 05-04-13 15:01
The loss or gain of electrons on the surface of a material
Static electricity
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The rate of flow of electric charge; units of amperes (amps) A; l = q/t
Current
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The energy transfer by unit charge passing from one point to another; measured in volts
Potential difference (voltage)
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Opposition to the flow of electric current; unit of ohms
Resistance
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Graph used to show how the current through a component varies with the potential difference across it
Current-potential difference graph
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A resistor whose resistance varies with temperature
Thermistor
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An electrical device that resists the flow of an electrical current
Resistor
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An electrical device that allows electric current to flow in one direction
Diode
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Other cards in this set

Card 2

Front

The rate of flow of electric charge; units of amperes (amps) A; l = q/t

Back

Current

Card 3

Front

The energy transfer by unit charge passing from one point to another; measured in volts

Back

Preview of the front of card 3

Card 4

Front

Opposition to the flow of electric current; unit of ohms

Back

Preview of the front of card 4

Card 5

Front

Graph used to show how the current through a component varies with the potential difference across it

Back

Preview of the front of card 5
View more cards

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