Magnetic moment Definition and 165 Threads

when we write \vec \tau=[\vec \mu, \vec B] what is the point or the line about which we are calcuating the torque Also what is the magnetic moment's expression for a surface current and volume current distribution?

[b]1.I am confused about the topic effective magnetic moment.The equation is U={L(L+1)+4S(S+1)}^(0.5) Where u is effective magnetic moment,. Please clear the various terms and units involved in this. I will be greatly thankful if you could support...

what does magnetic moment mean?

Hi! When a charge/current moves in a closed loop, a magnetic moment is generated. Is there any formula for connecting the magnetic moment to E-field and B-field? Patrick

I feel really stupid that I can't solve this problem, but here goes... The force on a magnetic moment \mu_z in a nonuniform magenetic field B_z is given by F_z=\mu_z \frac{dB_z}{dz} If a beam of silver atoms travels a horizontal distance of 1 m through such a field and each atom has a speed of...

I have searched various websites... but all they have about magnetic moments is: \vec\mu=I\vec{A} and \vec\tau=\vec\mu\times\vec{B} but all the the sources only showed that the equation is true for rectangular loop of current. but I need a more satisfactory answer. So I try to prove this in a...

Hello Everybody, Glad to be back again after a year. My main motivation to be back, is precisely the following observation about the existence of an intrinsic magnetic moment at large scale too. [FONT="Arial"][SIZE="3"]Observations Supporting the Existence of an Intrinsic Magnetic Moment...

I cannot figure out how to solve this problem: The calculation of the magnetic moment of a current loop leads to the line integral (around a closed loop) INT r x dr a) Integrate around the perimeter of a current loop (in the xy plane) and show that the scalar magnitude of this line...

Excuse me, can anyone teach me how to calculate the induced magnetic moment of steel, given the applied magnetic field?

I don't understand this problem, please help me a) Show that sigma_subscript (y) is Hermitian

Let's say we have a 4-sided loop. Is the magnetic moment different for each side?

I'm not sure I know how to start this problem. "A rectangular coil has 16 turns and sides of length a=20 cm and c=50 cm. The coil is pivoted around the y-axis and its plane is at 30 degrees to a magnetic field B=50 k T. The current is 10 A a)Find the force on each side b)what is the...

I have a little question about QED.. How come QED could precisely predict the magnetic moment of electron and muon, but can't predict the lifetime of neutron with the same accuracy?

I believe to remember some recent comments about the measurement of neutron magnetic moment or some other quantity of this particle, which was not very well in agreement with standard model calculations. I can not remember which measurement it was, or when. Can anyone help my poor neurons?

Has the value of the Magnetic Momentic of the Tauon been determined experimentally in Units of Joules/Tesla? I have seen these values for the Electron and Muon. Thanks.