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Question
If R1 and R2 are filament resistances of a 200 W and a 100 W bulb respectively, designed to operate on the same voltage, then:
Options
R1 = R2
R2 = 2R1
R2 = 4R1
R1 = 4R2
Solution
R2 = 2R1
If R1 and R2 are filament resistances of a 200 W and a 100 W bulb respectively, designed to operate on the same voltage, then: R2 = 2R1
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RELATED QUESTIONS
What conclusion can you draw from the following observations on a resistor made of alloy manganin?
Current A |
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0.2 | 3.94 | 3.0 | 59.2 |
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2.0 | 39.4 | 8.0 | 158.0 |
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