alternating current
AC reverses direction many times per second. This topic is part of Electricity within Science & Nature. This page currently draws on 7 supporting questions, with answers and bonus facts available below.
Play alternating current Trivia
alternating current trivia questions
Alternating current periodically changes what?
Answer: Direction
Bonus fact: AC reverses direction many times per second.
Household electrical power is commonly supplied as what?
Answer: Alternating current
Bonus fact: AC is efficient for grid transmission and voltage transformation.
In the United States, standard grid frequency is what?
Answer: 60 Hz
Bonus fact: Many other countries use 50 Hz.
An electrical transformer changes what in alternating-current systems?
Answer: Voltage
Bonus fact: Transformers can step voltage up or down.
What abbreviation is used for direct current?
Answer: DC
Bonus fact: DC contrasts with alternating current.
What type of current does an alternator generate internally?
Answer: Alternating current
Bonus fact: Diodes convert the AC output to DC for the vehicle.
Transformers work primarily with what type of current?
Answer: Alternating current
Bonus fact: Changing magnetic fields induce voltage.