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GCSE Hub > Physics-P5- (DIRECT AND ALTERNATING CURRENTS) > Flashcards

Physics-P5- (DIRECT AND ALTERNATING CURRENTS) Flashcards

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1
Q

What is a direct current?

A

There is always one negative, one positive current (constant current) and it is supplied by cells and/or batteries

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2
Q

What is alternating current?

A

It has alternating potential difference (one that changes from negative to positive etc.) therefore has alternate direction. Used in mains electricity

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