Trace electricity from a power station through a step-up transformer and transmission cables, then a step-down transformer lowers voltage for safe distribution.
Transformers are useful in the transmission of electricity.
Explain how transformers are useful in the large-scale transmission of electricity.
You may draw a diagram to support your answer.
Any five from:
- step-up transformer used before transmission
- voltage is increased before transmission
- current is reduced before transmission
- less heating in transmission cables
- less energy wasted in transmission cables
- step-down transformer used after transmission
- voltage is decreased after transmission for safety
Accept:
- any mark if clear from a diagram