Consider the following circuits : In which circuit will the power dissipated in the circuit be (I) minimum (II) maximum ? Justify your answer.

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TextResistors in Series CombinationResistors in Parallel CombinationElectric Power and Its UnitCBSE PYQ

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A wire of resistance R is cut into three equal parts. If these three parts are then joined in parallel, calculate the total resistance of the combination so formed.

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