Spec 0625
Revise CIE IGCSE Physics 4.3.3 Action and use of circuit components with the question bank, lessons, revision guides, and flashcards.
Know that the p.d. across an electrical conductor increases as its resistance increases for a constant current • Supplement: Describe the action of a variable potential divider • Supplement: Recall and use the equation for two resistors used as a potential divider R₁ / R₂ = V₁ / V₂
