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  4. Two electric bulbs whose resistances are in the ratio 1: 2 connected in parallel across a voltage source, The powers developed in them are in the ratio of

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Q. Two electric bulbs whose resistances are in the ratio $1 : 2$ connected in parallel across a voltage source, The powers developed in them are in the ratio of

Solution:

$P=\frac{V^{2}}{R} $
$ \Rightarrow P \propto \frac{1}{R}$