State one property of a wire used as a filament of an electric bulb
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ncandescent light bulbs consist of an air-tight glass enclosure (the envelope, or bulb) with a filament of tungsten wire inside the bulb, through which an electric current is passed.
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Answer:
The material used to make filament must have high resistance and high melting point. Usually tungsten is used to make a filament. The fuse wire must get heated and melt whenever excess current passes through it. Hence, it must be made of an alloy with high resistance and low melting point.
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