Question

question: high voltages carry electricity for long - distance transmission. what are used to lower that voltage for distribution and usage? answer options: select one of four electric relays electric inductors step - up transformers step - down transformers

Explanation:

To solve this, we analyze each option:

• Electric relays: Used for switching circuits, not voltage reduction.
• Electric inductors: Store energy in magnetic fields, not for voltage lowering in distribution.
• Step - up transformers: Increase voltage (used in transmission start), not lower.
• Step - down transformers: By electromagnetic induction, they decrease voltage, suitable for distribution/usage after long - distance high - voltage transmission.

Answer:

D. Step - down transformers