1.

R1, R2 and R3 are the filament resistance of50 W, 100 W and 150 W bulbs, respectively.If all three bulbs are designed to work at thesame voltage, then​

Answer»

ANSWER:

Power of bulb is inversely PROPORTIONAL to the resistance of filament WIRE of bulb HENCE,

P2P1=R1R2

100200=R1R2

⇒R1R2=2

Hence, R2=2R1

Explanation:

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