BatteriesBATTERY THEORYFigure 2 Basic Chemical Production of Electrical PowerThis action causes electrons to beFigure 3 Electron Flow Through a Batteryremoved from the copperelectrode, leaving it with an excessof positive charge. If a load isconnected across the electrodes,the forces of attraction andrepulsion will cause the freeelectrons in the negative zincelectrode to move through theconnecting wire and load, andtoward the positive copperelectrode (Figure 3).The potential difference thatresults allows the cell to functionas a source of applied voltage.Rev. 0 Page 5 ES-04
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