ocr: HOW A BATTERY WORKS When you connect a - T - - - - - battery 1n a circuit, a chemical reaction CARBON starts, releasing electrons POWDER from the powdered zinc. These free electrons are POWDERED all negatively charged, - - ZINC and SO push each other through the steel nail, STEEL and around the circuit. NAIL e Electrons enter the FLOW OF battery again at the ELECIRONS positive electrode and complete the circuit PREE by flowing through ELECTRON the carbon powder.
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