|_____||switch||1) energy source for a circuit|
|_____||battery||2) measures the potential difference across any two points of a circuit|
|_____||resistor||3) ratio of potential energy to current|
|_____||voltmeter||4) potential energy per unit of charge|
|_____||ammeter||5) converts electric energy into other forms|
|_____||potential difference||6) a device for closing and opening a circuit|
|_____||current||7) measure the current flowing through a circuit|
|_____||resistance||8) a flow of electric charge|
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