Current

1) Current: The flow of electric charge around the circuit but there MUST be a potential difference.

2) Potential Difference: (voltage) the driving force that pushes the current around.

3) Resistance: Anything in the circuit that slows the current down (ohms).

The greater the resistance across a component the smaller the current that flows through it (for a given potential difference across the component.

The current across a component depends on its resistance and potential difference.

The size of the currenct flow is the rate of flow of charge:

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Potential difference:

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Ohmic conductors:

• The current passing through them is directly proportional…