The National Grid
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Last updated 7:54 PM on 9/30/22
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10 Terms
1
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Potential difference
________ is increased using a step- up transformer.
2
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Transformers
________ are nearly 100 % efficient, so the power in primary coil= power in secondary coil.
3
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Nation Grid
Electricity is distributed via the ________.
4
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Potential difference
________ is changed by a transformer.
5
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400,000V
Voltage is______ for efficient transmission
6
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high pd and low current
The national grid uses
7
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current in secondary coil = p.d. across primary coil
p.d across secondary coil x_________________ x current in primary coil
8
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as low as possible
For it to be cheap, keep the current_______
9
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in the morning and evening
Demand is highest__________
10
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below maximum output
Power stations run_________
