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Tuesday, January 16 2018 @ 03:15 PM CST
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By: lisatang (offline)  Monday, August 27 2012 @ 02:05 AM CDT (Read 845 times)  

Give a reason why the structure of the filament of the bulk coiled instead of a straight length

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By: GIM (offline)  Tuesday, August 28 2012 @ 09:53 AM CDT  

It has to be coiled so that it can be long enough to create the right resistance to produce the heat necessary for it to light up within the small space of the bulb. It also increased the surface area for the light to emit. If it is not coiled, the bulb will have to be very large in size. Wink

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