. The resistance per unit length of a potentiometer wire 10m long is 10 per meter. A resistance box and a 2V accumulator are connected in series with the potentiometer wire. What should be the resistance in the resistance box to have a potential drop of 1mV in the potentiometer wire?
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The resistance per unit length of a potentiometer wire 10m long is 10 per meter. A resistance box and a 2V accumulator are connected in series with the potentiometer wire. What should be the resistance in the resistance box
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