Question

Why is a step up transformer used before the power is sent through the transmission cables?

Answer 1

Answer:

$456 \div 44. <434433 >$

jsjejejjeneenjj

Answer 2

Answer:

Power companies use step-up transformers to boost the voltage to hundreds of kV before it is transmitted down a power line, reducing the current and minimizing the power lost in transmission lines. Step-down transformers are used at the other end, to decrease the voltage to the 120 V used in household circuits.