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Note that your final mark will not be saved in the system.
Note that your final mark will not be saved in the system.
Power supplies MatchUp
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Click on a top box, then click on its match below. Or, drag a top box and drop it onto the correct match. Match all pairs before clicking ‘Check’.
230 V
Alternating
Transformer
Three-core cable
Direct
Step-down
Power stations
50 Hz
Step-up
National Grid
Power rating
Describes a potential difference or current that is transmitted at a single value and in a single direction
Describes a potential difference or current that changes between two values, one positive and one negative
The type of wire used to connect appliances to the mains in the UK
The frequency of domestic supplies
The potential difference of domestic supplies
The rate at which an appliance transfers energy from the mains
The system of cables that transfers power from power stations to homes and businesses
Where electricity is generated from energy resources and enters the National Grid
Device used to increase or decrease the potential difference of a power supply for transferal or use
Transformer used to increase potential difference to be transferred across the country
Transformer used to decrease potential difference for use in homes