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[" 28.A potentiometer circuit is set up ...

[" 28.A potentiometer circuit is set up as shown.The "],[" potential gradient,across the potentiometer wire,is "],[k" volticm and the ammeter,present in the circuit,"],[" reads "1.0" A when two way key is switched off.The "],[" balance points,when the key between the terminat "],[" (i) "1" and "2" (ii) "1" and "3," is plugged in,are found to "],[" be at lengths "I_(1)cm" and "I_(2)" cm respectively.The "],[" magnitudes,of the resistors "R" and "X," in ohms,are "],[" then,equal,respectively,to "]

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