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R1, R2 and R3 are the filament resistance of 50 W, 100 W and 150 W bulbs, respectively.If all three bulbs are designed to work at thesame voltage, then |
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Answer» ong>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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