(b) the temperature of the filament of bulb is 2700°c when it glows. Why does it not get burnt up at such high temperature? (c) the filament of an electric lamp, which draws a current of 0.25 a is used for four hours. Calculate the amount of charge flowing through the circuit. (d) an electric iron is rated 2 kw at 220 v. Calculate the capacity of the fuse that should be used for the electric iron.
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(B) bcz tungsten has melting point uptown 3360°c
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