Charge can flow through some materials, but not others. Created by David SantoPietro.
Watch the next lesson: https://www.khanacademy.org/science/physics/electric-charge-electric-force-and-voltage/charge-electric-force/v/conservation-of-charge?utm_source=YTutm_medium=Descutm_campaign=physics
Missed the previous lesson? https://www.khanacademy.org/science/physics/electric-charge-electric-force-and-voltage/charge-electric-force/v/coulombs-law?utm_source=YTutm_medium=Descutm_campaign=physics
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