WikiCards · Card list · Science cards · Photoelectric effect
Rare card · Science
Photoelectric effect, a Rare card
The photoelectric effect is the emission of electrons from a material caused by electromagnetic radiation such as ultraviolet light.
- Rarity
- Rare
- Domain
- Science
- ATK
- 79
- DEF
- 81
- Power
- 160
- Wikipedia reads a year
- 240,000
Power 160 (ATK + DEF): stronger than 85 % of WikiCards cards.
The facts on the card
The card carries these facts from its Wikipedia article.
- Electrons emitted in this manner are called photoelectrons.
- The phenomenon is studied in condensed matter physics, solid state, and quantum chemistry to draw inferences about the properties of atoms, molecules and solids.
- The effect has found use in electronic devices specialized for light detection and precisely timed electron emission.
Why it is Rare
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Photoelectric effect article was read about 240,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 79 and blocks with 81: each hit it takes is cut by 32 %.
How to get Photoelectric effect
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, Photoelectric effect (revision), CC BY-SA 4.0. Photo : Ponor, CC BY-SA 4.0, Wikimedia Commons.


