The transformer equation

What is The transformer equation?

For an ideal transformer the ratio of the primary to secondary potential difference equals the ratio of primary to secondary turns, Vp/Vs = Np/Ns; more turns on the secondary steps the p.d. up, fewer turns steps it down.

This definition is part of the Electricity and Magnetism chapter in Cambridge IGCSE Physics.

Concepts related to The transformer equation

• changing flux
• soft-iron core
• a.c. only
• high-voltage transmission