what is filament lamp and fluorescent lamp???give brief discription..plz
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Answer: filament lamp is the lamp in which you use tungsten as a lighting object to produce light. Whereas fluorescent lamp is the lamp in which you use mercury vapour and fluorescent powder to produce light. Fluorescent lamps are more effective than filament lamps because it converts 30% of the total energy to light energy and 70% of energy in heat energy whereas filament lamps convert 10% of energy into light whereas all the remaining 90% Is converted into heat energy.
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