transformers
- Created by: JTre
- Created on: 16-03-19 18:32
View mindmap
- mains electricity is an ac supply
- ac means alternating current
- repeatedly reverses its direction
- to find the frequency of an ac supply, measure the time period of the waves.
- frequency = 1/time taken for one cycle
- ac means alternating current
Comments
No comments have yet been made