level: Transforer inefficentd
Questions and Answers List
level questions: Transforer inefficentd
| Question | Answer |
|---|---|
| What places can inefficiencies in transformers transpire from | core wires |
| Where do the inefficiencies occur from from the core | Induced eddy currents The reversal of magnetism Poor insulation between the primary and secondary coil |
| Whta are ways to reduce energy loses in tranformers? | Just need frst two probs Making the core from soft iron or iron alloys to allow easy magnetisation and demagnetisation and reduce hysteresis loss Laminating the core Using thick wires, especially in the secondary coil of step-down transformers Using a core that allows all the flux due to the primary coil to be linked to the secondary coil |
| Why does the reversal of magnetism cause innefecienes | Because reversal of magnetism requires work to be done |
| Why are eddy currents bad | Eddy currents heat up the core cauing the energy to be wasted as heat energy |
| What does laminating the core actually do? | Laminating the core means it has a higehr resitance making eddy currents less likely to occur and waste less enrgy |
| Whats the purpose of the core | directs the magnetic field round to the secondary |