There’s a small, silent component hiding in almost every electronic device—from your phone and laptop to your TV and charger.

Electricity means the presence or motion of electrical charge. When the charge is moving from its source (origin) to sink (destination), it's called electrical current. Electrical charge that simply ...

*Refers to the latest 2 years of stltoday.com stories. Cancel anytime. Q How does electricity move through wires? — Mollie Bryan, Madison, Wis. A Dan Ludois, professor of electrical and computer ...

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