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Magnetic moment: Quiz

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Question 1: The magnetic moment of a ________ is a measure of its tendency to align with a magnetic field.
FerromagnetismMagnetMagnetismElectromagnetism

Question 2: The vector of this moment is pointing perpendicular to the plane of the loop, in the direction of the ________ at the center of the loop.
MagnetismMagnetic fieldMaxwell's equationsMagnetic moment

Question 3: For a spinning charged solid with a uniform charge density to mass density ratio, the ratio of its magnetic moment to its ________, also known as gyromagnetic ratio, is equal to half the charge-to-mass ratio.
EnergyForceAngular momentumRigid body

Question 4: In the Earth's magnetic field of 0.5 G (5×10−5 T) perpendicular to the loop's axis, the loop (as well as the Earth) will experience a ________ in newton-meters of
Angular momentumTorqueForceEnergy

Question 5: In the International System of Units (SI), the dimension of magnetic dipole moment is ________×current, or L2I (see examples below).
AreaPolygonTriangleSphere

Question 6: More precisely, the term magnetic moment normally refers to a system's magnetic dipole moment, which produces the first term in the ________ of a general magnetic field.
Multipole momentsMultipole expansionSpherical multipole momentsQuadrupole

Question 7: ________ molecule, CO2, mostly exhibits diamagnetism, a much weaker magnetic moment of the electron orbitals that is proportional to the external magnetic field.
Carbon cycleCarbon dioxideGreenhouse gasCarbon sink

Question 8: There exists a close connection between ________ and magnetism, expressed on a macroscopic scale in the Einstein-de Haas effect, or "rotation by magnetization," and its inverse, the Barnett effect, or "magnetization by rotation."[2]
EnergyRigid bodyAngular momentumForce

Question 9: The ________ component of an object's magnetic field is symmetric about the direction of its magnetic dipole moment, and decreases as the inverse cube of the distance from the object.
ForceMagnetic momentElectric dipole momentDipole

Question 10: For example, a loop of ________, a bar magnet, an electron, a molecule, and a planet all have magnetic moments.
Magnetic fieldElectric chargeElectric currentMaxwell's equations







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