Question

How are step-up transformers used in the transmission of electrical energy (1 point)?

Answer 1

Answer choices:

A. They increase the voltage and the current for a home.

B. They decrease the voltage before it leaves a power plant.

C. They increase the voltage for efficient long-distance transmission.

D. All of the above.

The answer is C. I hope this helps!

Answer 2

Step-up transformers are used in the transmission of electrical energy by increasing the voltage for efficient long-distance transmission. Step-up transformers increases the voltage which will increase resistance at constant current. At a lower current value, transmission is much more efficient.