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Saturday, 5 January 2013

Electric heating device

Electric heating device
Electric iron, electric heater, electric toaster are some of  the appliances that work on the principle of heating effect of current. In these appliances, Nichrome which is an alloy of nickel and chromium is used as the heating element for the following reasons.
1.      It has high specific resistance
2.      It has high melting point
3.      It is not easily oxidized

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