Spec 0625
Revise CIE IGCSE Physics 4.5.6b Turns ratio and current in a transformer with the question bank and revision guides.
Recall and use the equation Vₚ / Vₛ = Nₚ / Nₛ where p and s refer to primary and secondary • Supplement: Recall and use the equation for 100% efficiency in a transformer IₚVₚ = IₛVₛ where p and s refer to primary and secondary
