Question
Which of the following do power companies do AFTER transmitting power over extended distances (so that the power can be used in household appliances)?
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.
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.
Answers
GPT-4o mini
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.**
**They 'step down' the voltage and increase the current.**