Which of the following do power companies do AFTER transmitting power over extended distances (so that the power can be used in household appliances)?

Question

Group of answer choices

They decrease both the voltage and current.

They 'step up' the voltage and reduce the current.

They 'step down' the voltage and increase the current.

They increase both the voltage and current.

Answer 1

After transmitting power over extended distances, power companies typically 'step down' the voltage and increase the current to make the electricity suitable for household use. High voltages are used during transmission to reduce energy losses, but for distribution and use in homes, the voltage needs to be decreased to safe levels while the current is increased to deliver the desired power. Therefore, the correct choice is:

They 'step down' the voltage and increase the current.