Mains Electricity (AQA GCSE Physics Combined Science): Flashcards
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Type of current supplied by UK mains electricity
Type of current supplied by UK mains electricity
AC (alternating current)
Frequency of UK mains electricity
Frequency of UK mains electricity
50 Hz
Voltage of UK mains electricity
Voltage of UK mains electricity
About 230 V
Meaning of 50 Hz in UK mains
Meaning of 50 Hz in UK mains
50 cycles of positive and negative currents per second
Colour of live wire in a plug
Colour of live wire in a plug
Brown
Voltage of live wire
Voltage of live wire
230 V
Function of live wire
Function of live wire
Carries alternating potential difference from supply
Colour of neutral wire in a plug
Colour of neutral wire in a plug
Blue
Voltage of neutral wire
Voltage of neutral wire
0 V
Function of neutral wire
Function of neutral wire
Completes the circuit
Colour of earth wire in a plug
Colour of earth wire in a plug
Green and yellow stripes
Voltage of earth wire
Voltage of earth wire
0 V
Function of earth wire
Function of earth wire
Safety wire to prevent appliance becoming live
Direction of current flow in DC
Direction of current flow in DC
One direction only
Devices that supply direct current (DC)
Devices that supply direct current (DC)
Cells and batteries