Question

Complete the sentence.

Electric current from a generating plant is _______.

a. direct current transmitted at high voltages, but usually used at low voltages.
b. alternating current transmitted at high voltages, but usually used at low voltages.
c. alternating current transmitted at low voltages, but usually used at high voltages.
d. direct current transmitted at low voltages, but usually used at high voltages.

Answer 1

The best and most correct answer among the choices provided by your question is the second option or letter B. Electric current from a generating plant is alternating current transmitted at high voltages, but usually used at low voltages. That's how an electrical power grid works!

I hope my answer has come to your help. Thank you for posting your question here in Brainly.

Answer 2

Answer:

b. alternating current transmitted at high voltages, but usually used at low voltages.

Explanation:

As we know that transformer is used to convert high voltage AC to low voltage or vice versa.

Here this AC voltage is transmitted at high voltage conditions because here power remains constant.

this power is given by

$P = Vi$

now if we increase the voltage then the current will be less due to which the heat loss in transmission line is small

now when we need to supply it to the homes we will have to decrease the voltage by using the transformer again