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 O Level Physics.

Concepts related to The transformer equation

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