A potentiometer circuit is setup as shown. The potentail gradient across the potentiometer wire
Channel: Doubtnut
Date: 2020-08-02

A potentiometer circuit is setup as shown. The potentail gradient across the potentiometer wire is `k "volt"//cm` and the ammeter present in the circuit reads. `1.0 A` When two-way key is switched off. The balance point, when the key between the termainals (i) 1 and 2 (ii) 1 and 3, is plugged in, are found to be at lenghts `l_(2) cm` and `l_(2) cm` respectively. The magnigutes, of the resistors `R` and `X`, in ohm, are then, equal, respectively, to  img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/BMS_OBJ_XII_C03_E01_403_Q01.png" width="80%"