What is resistance of lamp when it is connencted to source

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Reference no: EM13274184

A 75-W, 120-V tungsten incandescent lamp has a resistance of 19.2Ω when no current flows through it.
1.What is the resistance of the lamp when it is connencted to 120-V cource?
2.Why do incandescent lamps usually fail when they are fisrt turned on?

Reference no: EM13274184

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