Find the magnetic dipole moment of the current loop given in the figure. A) Ia²³ (-i-/21-/k) B) Ia² (î——/k) C) Ia² (-1) D) Ia²(-k) E) la² (-i-j+ k) Y
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- Chapter 29: Magnetic Fields We studied how a moving charge would react in a magnetic field, which extends naturally to current where charges drift (hence moves) in a magnetic field. One special case of this is the torque due to current loops in magnetic fields: 7= μx B= IAX B since we defined the magnetic moment of a current loop as μ = IĀ. estimate the current that an electric car would have to provide to its motor such that it can do 0-100 kph in 3 seconds. Some useful hints for guidance are below: (1) . Find the acceleration using kinematics With the acceleration, what would be the torque needed for the motor to apply to the wheel? You need to estimate yourself the size of the wheel, as well as the size of the motor hub that is connected to the wheel. A simple electric motor has a permanent magnet, say of strength of 1 Tesla, and a coil acting as many current loops. You need to estimate the number of loops, you can google it just come up with a reasonable number. ● From this and…An electron is placed in a magnetic field B that is directed along a z axis. The energy difference between parallel and antiparallel alignments of the z component of the electron's spin magnetic moment with B is 5.30 x 10-25 J. What is the magnitude of B ? Number i UnitsFind the magnetic dipole moment of the current loop given in the figure. A) Ia² (-i-1-k) B) Ia² (ik) C) la² (-1) D) Ia² (-k) E) la¹(-i-j+ k)
- A magnetic dipole moment of m = (7.50, -8.38, 4.59) Am² is inside a uniform magnetic field of B = (3.34, -6.77, 6.79) T. What is the potential energy of the dipole? (a) What is the angle between the magnetic dipole moment vector and the magnetic field vector? (b) What is the magnitude of the torque acting on the dipole?The magnetic dipole moment of the nickel atom is about 5.6 x 10-24 A· m2. (a) Calculate the maximum magnetic dipole moment (in A •m²) of a domain consisting of 1019 nickel atoms. A: m2 (b) What current (in A) would have to flow through a single circular loop of wire of diameter 2.2 cm to produce the magnetic dipole moment you calculated? AAn electron is accelerated from rest through a potential difference V after which it enters a region having a magnetic field of magnitude B and direction perpendicular to the electron's velocity. The radius of the electron orbit in this magnetic field is given by: meV 2BN e 2m, V Be 2m. VB O 1 2m.V B e O 1 meV BV 2e O there is not enough information to determine 2m.V BV O none of these