What colour(s) are each of the following wires in an eletrical plug?; 1.Live wire 2.Neutral wire 3.Earth wire.
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Card 7
Front
Which two wires usually carry the same current?
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Card 8
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What type of safety devie contains a wire that is designed to melt when the current passing through it goes above a certain value?
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Card 9
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A current of 0.5A passes through a torch bulb. The torch is powered by a 3V battery. Calculate the power of the torch.
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Card 10
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A current of 0.5A passes through a torch bulb. The torch is powered by a 3V battery. In half an hour, 900C of charge pass through the battery. Calculate how much electrical energy the bulb transfers in half an hour.