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Two bulbs are reled (P(1),V)" and "(P(2...

Two bulbs are reled `(P_(1),V)" and "(P_(2), V)`. If they are connected (i) in series and (ii) in perallel across a supply V, find th power dissipated in the two combinations in terms of `P_(1)" and " P_(2)`.

Text Solution

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In series, `P_(s)=(P_(1)P_(2))/(P_(1)+P_(2))`
In parallel, `P_(P)=P_(1)+P_(2)`
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