電: electricity; lightning. JLPT N5; 13 strokes.
電 means 'electricity' and, in origin, 'lightning'; it appears in almost all words related to electricity.
On reading: デン in 電気 (でんき, electricity; light), 電話 (でんわ, telephone), 電車 (でんしゃ, train), 電池 (でんち, battery), 停電 (ていでん, blackout), 充電 (じゅうでん, charging), 家電 (かでん, electrical appliances).
It has no common kun readings.
Remember: in the upper part of the kanji there is 雨 (rain), as in other kanji related to atmospheric phenomena: 雪 (ゆき, snow), 雲 (くも, cloud), 雷 (かみなり, thunder).
電車で学校に行きます。
densha de gakkou ni ikimasu.
I go to school by train.
Follow the steps in order. Each new stroke is highlighted.
Stroke paths: KanjiVG, CC BY-SA 3.0. Sequential diagrams derived from the original paths.