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WikiCards · Card list · Society cards · Ampère's circuital law
Uncommon card · Society
Ampère's circuital law, an Uncommon card
In classical electromagnetism, Ampère's circuital law, often simply called Ampère's law, and sometimes Oersted's law, relates the circulation of a magnetic field around a closed loop to the electric current passing through that loop.
- Rarity
- Uncommon
- Domain
- Society
- ATK
- 70
- DEF
- 52
- Power
- 122
- Wikipedia reads a year
- 79,000
Power 122 (ATK + DEF): stronger than 60 % of WikiCards cards.
Ampère's circuital law quiz: 3 questions
Three questions on the Ampère's circuital law card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
James Clerk Maxwell ______ the law in 1855.
Answer
published. James Clerk Maxwell published the law in 1855. From the Ampère's circuital law article on Wikipedia.
In which decade?
The law was inspired by Hans Christian Ørsted's ____ discovery that an electric current generates a magnetic field.
Answer
1820s. The law was inspired by Hans Christian Ørsted's 1820 discovery that an electric current generates a magnetic field. From the Ampère's circuital law article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Artificial gravity. Artificial gravity 73 · Ampère's circuital law 70 · Black-eyed pea 67 · Gangaikonda Cholapuram 63 ATK in WikiCards.
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.
- The law was inspired by Hans Christian Ørsted's 1820 discovery that an electric current generates a magnetic field.
- This finding prompted theoretical and experimental work by André-Marie Ampère and others, eventually leading to the formulation of the law in its modern form.
- James Clerk Maxwell published the law in 1855.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Ampère's circuital law article was read about 79,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 70 and blocks with 52: each hit it takes is cut by 21 %.
How to get Ampère's circuital law
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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Credits
Text : Wikipedia, Ampère's circuital law (revision), CC BY-SA 4.0. Photo : User:Stannered, CC BY-SA 3.0, Wikimedia Commons.
