WikiCards · Card list · Science cards · Alternating current
Rare card · Science
Alternating current, a Rare card
Alternating current is an electric current that periodically reverses direction and changes its magnitude continuously with time, in contrast to direct current, which flows only in one direction.
- Rarity
- Rare
- Domain
- Science
- ATK
- 76
- DEF
- 72
- Power
- 148
- Wikipedia reads a year
- 230,000
Power 148 (ATK + DEF): stronger than 75 % of WikiCards cards.
Alternating current quiz: 3 questions
Three questions on the Alternating current card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
The ______ AC and DC are often used to mean simply alternating and direct, respectively, as when they modify current or voltage.
Answer
abbreviations. The abbreviations AC and DC are often used to mean simply alternating and direct, respectively, as when they modify current or voltage. From the Alternating current article on Wikipedia.
Which of these Wikipedia articles is read the most in a year?
Answer
Alternating current. Alternating current 230,000 · Neural crest 30,000 · Antlia 20,000 · Ground-level power supply 16,000 Wikipedia reads over a year.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- Alternating current is the form in which electric power is delivered to businesses and residences, and it is the form of electrical energy that consumers typically use when they plug kitchen appliances, televisions, fans and electric lamps into a wall socket.
- The abbreviations AC and DC are often used to mean simply alternating and direct, respectively, as when they modify current or voltage.
- The usual waveform of alternating current in most electric power circuits is a sine wave, whose positive half-period corresponds with positive direction of the current and vice versa.
Why it is Rare
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Alternating current article was read about 230,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 76 and blocks with 72: each hit it takes is cut by 29 %.
How to get Alternating current
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
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The cards just above and just below Alternating current in the power ranking, all domains together.
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- LatitudeRare · Science · ATK 76 DEF 72
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- Baroque musicRare · Arts · ATK 75 DEF 73
Card lists
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Credits
Text : Wikipedia, Alternating current (revision), CC BY-SA 4.0. Photo : Zureks, Public domain, Wikimedia Commons.


