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www.GOALias.blogspot.comTable 14.1 Symbols for someelectric circuit componentsS.No. Electric componentSymbol1. Electric cell2. Electric bulb3. Switch in ‘ON’ position4. Switch in ‘OFF’ positionMany devices such as torches,transistors, toys, TV remote controls, usebatteries. However, in some of thesedevices the electric cells are not alwaysplaced one after the other as shown inFig. 14.2. Sometimes the cells are placedside by side. Then how are the terminalsof the cells connected? Look carefullyinside the battery compartment of anydevice. There is usually a thick wire ora metal strip connecting the positiveterminal of one cell to the negativeterminal of the next cell (Fig.14.3). Inorder to help you to place the cellscorrectly in the battery compartment,‘+’ and ‘–’ symbols are usually printedthere.How can we connect the cells toprepare batteries for our activities? Youmay make a cell holder, as shown inFig.14.4, using a wooden block, two ironstrips and rubber bands. It is necessary5. Battery(a)(b)6. WireFig. 14.2 (a) A battery of two cells(b) A battery of four cellsthat the positive terminal of one cell isconnected to the negative terminal of thenext cell. Such a combination of two ormore cells is called a battery.Fig. 14.3 Connecting two cells together to makea battery161ELECTRICCURRENTAND ITS EFFECTS161