Explanation of "Alternating Current"
Definition:"Alternating current" (often abbreviated as AC) is a type of electric current that changes direction periodically. In simpler terms, it means the flow of electricity goes back and forth instead of just in one direction.
Advanced Usage:
In more technical contexts, you might discuss the frequency of the alternating current, which is measured in hertz (Hz). In the United States, the standard frequency is 60 Hz, meaning the current changes direction 60 times per second.
Engineers might describe how alternating current is used in power generation and transmission systems.
Word Variants:
Direct Current (DC): This is the opposite of alternating current, where the electric current flows in one direction only.
Alternator: A device that generates alternating current.
Different Meanings:
While "alternating current" specifically refers to a type of electric current, the word "alternating" can also mean something that occurs in turns or changes back and forth in other contexts. For example, "alternating days" means some days are one thing and other days are something different.
Synonyms:
Idioms and Phrasal Verbs:
There are no specific idioms or phrasal verbs that include "alternating current," but in discussions about electricity, you might hear phrases like "powering up" or "plugging in," which relate to using electricity.