Transformer

Rarity: Ultra rare

A topic known all over the world: only a few thousand cards.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Invention

Domain

Society

Knowledge cost

6

In collections

Nobody has pulled it yet.

What Wikipedia says

In electrical engineering, a transformer is a passive component that transfers electrical energy from one electrical circuit to another circuit, or multiple circuits.

Excerpt from the Wikipedia article “Transformer”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Raimond Spekking, CC BY-SA 4.0, via Wikimedia Commons.