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A wire of uniform cross section of resistance `16 Omega` is divided into four pieces in the ratio of 1 : 2 : 3 : 4 and ll the four resistros are connected in the form of a square . Calculate the current drawn from the battery, if a battery of emf 10 V and internal resistance `0.5 Omega` is connected across the resistor with least resistance.

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5.15
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