engineering recuitment BARC Stipendiary Trainee Category II 2023 Mock Test Electrician and Wireman Electrical Machines Transformers
A transformer is a device that:
1
transfers electric power from one current level to another without a change of frequency
2
transfers magnetic energy from one circuit to another without a change of frequency
3
transfers electric power from one circuit to another without a change of frequency
4
transfers mechanical power from one circuit to another without a change of frequency