# Topic P3: Electricity; Definitions

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• Created by: MiriamL
• Created on: 15-11-19 13:36
Static electricity
build up of charge on an insulated material, so the charge cannot flow away
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Current
rate of flow of charge, charge flow per second, measured in Amps eqation I (A)
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Charge
meausures in coulombs C equation Q
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Potential difference
meausured in Volts, V. Equation V. Measured with a voltmeter
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Resistance
measured in Ohms Equation R
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Conventional current
flows from positive to negative
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Power supply
Provides the energy to make the charge flow in the curcuit
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Voltage
Energy per coulomb of charge measured in Volts
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size of current
charge flow per second
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Series circuit
Only has one loop and current is the same everywhere
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Voltmeter
Measures electrical poterntial differnece. Meausres rise in potential across a cell or battery or a drop in potential
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Parallel circuit
Have more than one loop each loop can be worked independantly
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## Other cards in this set

### Card 2

#### Front

rate of flow of charge, charge flow per second, measured in Amps eqation I (A)

Current

### Card 3

#### Front

meausures in coulombs C equation Q

### Card 4

#### Front

meausured in Volts, V. Equation V. Measured with a voltmeter

### Card 5

#### Front

measured in Ohms Equation R