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A wire of certain length has a resistance of 24 ohm. If is recast by reducing its length to half. Calculate the new resistance.​

Answer»

12 ohmsExplanation:we KNOW that; R=¢L/A where ¢ is TAKEN as resistivityas R is directly related to L thus when the L is reduced to half the R will also be reduced to half.Therefore; R=1/2(24)finally; R=12 ohms



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