Transformer Turns Ratio Formula
A transformer's turns ratio describes how it steps voltage up or down between its primary and secondary windings.
Formula
a = Vp ÷ Vs
- a
- Turns ratio
- Vp
- Primary voltage, in volts
- Vs
- Secondary voltage, in volts
A transformer's turns ratio describes how it steps voltage up or down between its primary and secondary windings.
a = Vp ÷ Vs