Find the current flowing at the instant of switching on a 100 watt metal filament lamp

Posted on 2014-03-08 08:47:00 in Engineering by JEWUS

Find the current flowing at the instant of switching on a 100 watt metal filament lamp on to a 220 V circuit given that the incandescent filament temperature is 2000 C and the resistance temperature coefficient at room temperature of 20^oC is 0.005.

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