current and potential difference Flashcards by Melissa Hopper

Q

what is a current

A

the flow of electric charge round a circuit

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Q

what is potential difference

A

the driving force the pushes the current around

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Q

what is resistance

A

anything which slows the current down

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Q

what is the unit of a current

A

ampere, A

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Q

what is the unit of potential difference

A

volts, V

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Q

what is the unit of resistance

A

ohms, ( crown like)

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