は電気を

electricity

→ は
phrase Uncommon #17,734
electricity This is not a fixed phrase by itself: は marks the topic, while 電気を means “electricity” as the object of a verb. The full meaning depends on the verb that follows, such as “use electricity,” “turn on the lights,” or “transmit electricity.”
JA: この機械は電気をたくさん使う。
EN: This machine uses a lot of electricity.

電線は電気を流す

Electric wires carry electricity.

このエアコンは電気を食う

This air conditioner really consumes a lot of electricity.

夜にスタジオは電気をつけない

We don't turn on the lights in the studio at night.

は電気をよく伝える

Copper conducts electricity well.

トムは電気をつけた

Tom turned on the light.

針金は電気を伝える

Wire conducts electricity.