Two identical wires A and B have the same length l and carry the same current I. Wire A is bent ...

Two identical wires A and B have the same length l and carry the same current I. Wire A is bent into a circle of radius R and wire B is bent to form a square of side a. If B_1 and B_2 are the values of magnetic induction at the centre of the circle and the centre of the square, respectively, then the ratio B_1//B_2 is
Class: 12
Subject: PHYSICS
Chapter: SOURCES OF MAGNETIC FIELD
Board:IIT JEE

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