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The three resistances of equal value are arranged in the different combinations shown below. Arrange them in increasing order of power dissipationA. `IIltIltIII`B. `IgtIIIgtII`C. `IltIIIltII`D. `IltIIltIII` |
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Answer» Correct Answer - A `P=i^(2)R` Current is same `P=R` In the first case it is `3r` in second case it is `(2)/(3)r` in third case it is `(r)/(3)` and in fourth case the net resistance is `(3r)/(2)` `R_(III)ltR_(II)ltR_(IV)ltR_(I)becauseP_(III)ltP_(II)ltP_(IV)ltP_(I)` |
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