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107The resistance of a potentiometer wire of length10 m is 2012. A resistance box and a 2 voltaccumulator are connected in series with it. Whatresistance should be introduced in the box to have apotential drop of one microvolt per millimetre ofthe potentiometer wire ?[Kerala 941(Ans. 3980)

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answer is 3980 these is the correct answer comment me if you want full solution

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