Home
Class 12
PHYSICS
Two identical wires A and B have the sam...

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 square respectively, then the ratio is `B_1/B_2` is

A

`((pi^2)/(8))`

B

`((pi^2)/(8sqrt2))`

C

`((pi^2)/(16))`

D

`((pi^2)/(16sqrt2))`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

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

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 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 :

Two wires A and B have the same length equal to 44cm . and carry a current of 10A each. Wire A is bent into a circle and wire B is bent into a square. (a) Obtain the magnitudes of the fields at the centres of the two wires. (b) Which wire produces a greater magnetic field at the centre?

A wire of certain length carries a steady current. It is first bent to form a circular wire of one turn. The same wire is bent to form a circular coil of three turns. The ratio of magnetic induction at the centre of the coil in the two cases is ________

A wire is in the form of a circle of radius 21cm. If is bent into a square,then side of the square is

A wire in the form of a square of side '2m' carries a current 2A . Then the magentic induction at the centre of the square wire is ( magnetic permeability of free space =mu_(0))

A wire in the from of a square of side 'a' carries a current i . Then the magnetic induction at the centre of the square wire is (Magnetic permeability of free space= mu_(0) )

Two wires A and B are of lengths 40cm and 30cm . A is bent into a circle of radius r and B into an arc of radius r . A current i_(1) is passed through A and i_(20) through B . To have the same magnetic inductions at the centre, the ratio of i_(1):i_(2) is

A wire is bent to form a square of side 22 cm. If the wire is rebent to form a circle, its radius is

A wire of length l, carrying current i, is bent in circle of radius r, then magnetic momennt at centre of loop is