Two identical wires A and B, each of length ,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_A and B_B are the values of magnetic field at the centres of the circle and square respectively, then the ratio B_A/B_B is : [Main 2016]l' ,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_A and B_B are the values of magnetic field at the centres of the circle and square respectively, then the ratio B_A/B_B is : [Main 2016]

Magnetic Effects of Current and Magnetism Part 1

Section: Physics

Question : 68 of 100

Marks: +1, -0

Two identical wires A and B, each of length ′l′ ,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 BA and BB are the values of magnetic field at the centres of the circle and square respectively, then the ratio

is :

[Main 2016]

π2
16√2
π2
16
π2
8√2
π2
8

Validate

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