Physics q61

0. A resistance wire of uniform cross section is in the form of a ring. The two diametrically opposite points are connected through a source of emf via an ammeter. A conducing wire is now connected across AB, A1B3 and then A2B2, one by one, if ammeter reads l1 l2 & l3 respectively

(NTSE Haryana, Stage-I, 2015-16)

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