1.

The operating temperature of the filament of lamp is 2000 ∘C. The temperature coefficient of the material of filament is 0.005 ∘C−1. If the atmospheric temperature is 0 ∘C, then the current in the 100 W−200 V lamp when it is switched on is nearest to

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The operating temperature of the filament of lamp is 2000 C. The temperature coefficient of the material of filament is 0.005 C1. If the atmospheric temperature is 0 C, then the current in the 100 W200 V lamp when it is switched on is nearest to



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