A current I flows in a conducting wire of lenth L. If we bent it in a circular form, then calculate its magnetic dipole moment.
Text Solution
Verified by Experts
Let a wire of length L is bent in a circular form of raidus r. Then `2pir=L=Rightarrow=(L)/(2pi) ……………..(i)` The magnetic dipole moment of a circular ring, `" " M=IA " " ("where, A is area of the ring")` `or" " M=Ipir^(2) ` `" " M=Ipi((I)/(2pi))^(2)` `" " M=Ipixx(L^(2))/(4pi^(2)` `" " M=(IL^(2))/(4pi)A-m^(2)`
Topper's Solved these Questions
MAGNETISM AND MATTER
DC PANDEY ENGLISH|Exercise 5.1|15 Videos
MAGNETISM AND MATTER
DC PANDEY ENGLISH|Exercise 5.2|15 Videos
MAGNETICS
DC PANDEY ENGLISH|Exercise MCQ_TYPE|1 Videos
MODERN PHYSICS
DC PANDEY ENGLISH|Exercise Integer Type Questions|17 Videos
Similar Questions
Explore conceptually related problems
A current I is flowing in a conductor of length L when it is bent in the form of a circular loop its magnetic moment
A steady current flows in a long wire. It is bent into a circular lopp of one turn and the magnetic field at the centre of the coil is B. If the same wire is bent into a circular loop of n turns, the magnetic field at the centre of the coil is
One of the two identical conducting wires of length L is bent in the form of a circular loop and the other one into a circular coil of N identical turns. If the same current passed in both, the ratio of the magnetic field at the central of the loop (B_(L)) to that at the central of the coil (B_(C)) , i.e. (B_(L))/(B_(C)) will be :
Current i is carried in a wire of length L . If the wire is turned into a circular coil, the maximum magnitude of torque in a given magnetic field B will be
A thin bar magnet has dipole moment M . If this is bent in the form of semicircle , then find the new dipole moment .
A wire of length l meter carrying current i ampere is bent in form of circle. Magnetic moment is
A steel wire of length l has a magnetic moment M. It is bent into a semicircular arc. What is the new magnetic moment?
A steel wire of length l has a magnetic moment M. It is bent into a semicircular arc. What is the new magnetic moment?
A circular coil having 50 turns, each with an area of 0.01 m, carries a current of 2 A. Calculate its magnetic dipole moment.
A circular coil of Radius R is folded across its diameter such that the planes of two half rings are perpendicular to each other as shown in the figure. If the current through the coil is calculate the magnetic dipole moment of the configuration so formed.
DC PANDEY ENGLISH-MAGNETISM AND MATTER-Medical gallery
