Question

Which statement is true regarding DC current? A. The electrons move back and forth. B. There can only be one voltage supplied. C. A high voltage current can be transformed into a low voltage current. D. A low voltage current can be transformed into a high voltage current. E. This is what is sent from the power plants to your home.

Answer 1

Answer:

B

Explanation:

In a DC current, the current supplied is steady motion (a straight horizontal line in a graph) and this is what makes it had to transform. The alternating current takes a sine wave motion in a graph. This means is voltage varies from zero to peak and reverses polarity. The rate at which it achieves this is its frequency in Hertz.