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An electron is moving with velocity v in an atom with orbital radius R. Derive the expression for magnetic moment of the electron.
Posted by Sankhadip Das
A spinning electron creates a magnetic field.But what about an electron inside a current carrying wire electron is spinning around its axis and revolving in loop,both simultaneously.So,what if both the situations contradict (both magnetic fields are in opposite direction ).net M.F. should be zero then. I mean what is the fate of electron in a current carrying wire with respect to its spin?
If a point lies at a distance x from the midpoint of the dipole the electric potential is?
Asked Sai Mohan
If the distance x is along the equatorial plane (a plane passing through the midpoint and perpendicular to the axis), the potential will be zero.
Please clarify what did you mean.
Two different wires X and Y of same diameter but different materials are joined together in series across a battery . If the number density of electrons in X is twice that in Y . Find ratio of drift velocity of electrons in two wires .
In series combination, the current is the same.
I = nAev
=> n1v1 = n2 v2
=> v1:v2 =n2:n1
Moving electrons produce magnetic field right? Electrons on earth are moving at an average of 27.83m/s due to earths rotation plus 30m/s due to earths revolution and may be more due to sun’s revolution and our galaxy’s revolution.
since there is no absolute motion, how can we tell if electrons are moving?
If the electrons are moving, anyway, why is there no magnetic field around a disconnected copper wire?
Asked N.Srichakradhar Reddy
According to Physics opposite charges always attract But in an atom the distance between nucleus and electrons are small then why electrons didnt combined with protons? protons and electrons have opposite charges.But why they didnt combined each other?
KS Samy answers:
the minimum distance between nucleus and orbital electron have minimum energy, as well as large distance it as more energy.”