PhysicsCode 5054
The transformer
What this topic asks you to be able to do
- Describe how a simple iron-cored transformer is built and explain the principle that makes it work
- Apply the words primary and secondary, and step-up and step-down, to transformers
- Recall Vp/Vs = Np/Ns, in which P and S stand for primary and secondary, and use this equation
- Give the benefits of high-voltage transmission and account for why losses of power in cables fall as the voltage increases