[?] is a flow of electrical charge. , electric current, Electrical charge will only flow round a complete (closed) circuit if there is a [?], potential difference, A [?] can only flow if there’s a source of potential difference., current, The unit of current is the [?], A., ampere, In a single, closed loop the current has the [?] value everywhere in the circuit., same, Potential difference (or voltage) is the driving force that pushes the charge round. Its unit is the [?], V., volt, [?] is anything that slows the flow down. Unit: ohm, Ω., resistance, The current flowing through a [?] depends on the potential difference across it and the resistance of the component., component.

01. Current

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