<text><span class="style10">lectricity in Action (2 of 6)</span><span class="style7"> A single cell can normally produce only a small voltage, but a number of them connected in a series (positive to negative) will give a higher voltage. A series of cells connected in this way is called a </span><span class="style26">battery</span><span class="style7">. Some batteries, known as </span><span class="style26">accumulators</span><span class="style7">, are designed so that they can be `recharged' by the passage of an electric current back through them. Similar principles as those used in cells are used in electrolysis and electroplating.</span></text>
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<text><span class="style10">. A dry cell,</span><span class="style7"> the basis for modern batteries.</span></text>
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