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Mathematics, 03.09.2020 14:01, brainbean
If R1 and R2 be the resistance of the filament of 40 W and 60 W
respectively operating 220 V, then
R1
R2
R1 = R2
R1 R2
![answer](/tpl/images/cats/otvet.png)
Answers: 3
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If R1 and R2 be the resistance of the filament of 40 W and 60 W
respectively operating 220 V, then<...
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