Assertion: The rating of a bulb is done on the basis of steady state of its filament. When a bulb is connected to a rated power supply then the filament consumesmore power than the rated power of the bulb immediately after it is switched on. Reason: When current flows through the bulb then due to heating of its filament its resistance first increases and then becomes contant when steady state temperature is attained.

Assertion: The rating of a bulb is done on the basis of steady state o

1.	Assertion: The rating of a bulb is done on the basis of steady state of its filament. When a bulb is connected to a rated power supply then the filament consumesmore power than the rated power of the bulb immediately after it is switched on. Reason: When current flows through the bulb then due to heating of its filament its resistance first increases and then becomes contant when steady state temperature is attained.
Answer» If both ASSERTION and REASON are correct and reason is a correct explanation of the assertion If both assertion and reason are correct but reason is not the correct explanation of the assertion If assertion is correct but reason is INCORRECT If assertion is incorrect but reason is correct Answer :A

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