A device that is used to transform 12 V a.c. to 200 V a.c. is
Step-down transformer
Step-up transformer
AC Generator
DC Motor
As the potential difference is increased from 12 V a.c. to 200 V a.c. the device is a Step-up transformer
Name the device used to transform 12 V a.c. to 200 V a.c. Name the principle on which it works.
Draw a labelled diagram of a device you would use to transform 200 V a.c. to 15 V a.c. Name the device and explain how does it work. Give its two uses.
Name the principle on which a device that converts 12 V a.c. to 200 V a.c works on