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angela_12

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Report Thread starter 2 years ago

I really don't understand AC and DC - I know what they are and have a vague idea of the differences between them but I don't understand what is useful where and why? Like how do you know whether to use an AC or DC supply in a circuit or experiment or whatever? Thanks for your help in advance. x

bluemuffin

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Dc is used in batteries and phones whereas ac is used in the mains

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