AQA · GCSE · Combined Science · Higher

Current, potential difference and resistance equation

Q01.5 1 mark

Write the equation which links current, potential difference and resistance.

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Marking points

1 Write $V = IR$ or an equivalent correct rearrangement linking potential difference, current and resistance.

Full-mark answer

$V = IR$

Why this answer loses marks

$P = IV$

This links power, current and potential difference, not resistance.