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Temperature Effect on Resistance

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A light bulb is connected in series with a coil of copper wire and a DC power supply. The voltage is adjusted so that the bulb glows dimly. When the coil is blown the temperature of the coil decreases. Thus, the resistance of the wire decreases causing the current to increase and the bulb to glow brightly.

Temperature-Effect-on-Resistance

Temperature-Effect-on-Resistance

Prepared by Prum ChanRatna, San Chakta, Chruy Channit

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0 #1 jimmy 2011-06-04 13:04
hey we like this model ... but we cant get how to make this model .. so can you send me the construction of this model.

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