Electricity in the Home
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14 Terms
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negative ends
Alternating currents are produced by alternating voltages in which the positive and ________ keep alternating.
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mains supply
The live wire provides the alternating potential difference (about 230V) from the ________.
3
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neutral wire
The ________ completes the circuit- when the appliance is operating normally, current flows through the live and ________, at 0V.
4
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UK mains supply
The ________ is an ac supply at around 50Hz.
5
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ac supplies
In ________ the current is constantly changing direction.
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There are two types of electricity supplies
alternating current(ac) and direct current(dc)
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ac
mains supply is_
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dc
battery supply is_
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alternating current
ac meaning is______
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direct current
dc meaning is_____
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live, neutral and earth
the three wires are_______
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provides alternating potential difference
the live wire___
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completes the circuit, current flows through neutral and live. it is at 0V
the neutral wire______
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is for safety
the earth wire______
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