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Results tagged with electromagnetism
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user 91
The classical theory of electric and magnetic fields, both in the static and dynamic case. It also covers general questions about magnets, electric attraction/repulsion, etc. Distinct from electrical-engineering.
1
vote
Direction of rotation of proton in magnetic field--opposite to a dipole
I’m not an expert in electromagnetism, but if one of my students (general physics, BSc level) asked, I'd say the following: the rotating proton indeed generates an magnetic field, and it behaves like a …
- 1,809
1
vote
Magnetic force and work
I believe your first question is quite adequately answered by Qmechanic’s link. Regarding force that do not work, i.e. are perpendicular to motion, there are indeed other examples:
In a circular mot …
- 1,809
2
votes
Accepted
Unknown isotope
First part: From the formula for the radius, and the fact that magnetic field is the same in both cases, you get:
$$ B = \frac{m_1 v_1}{q_1 r_1} = \frac{m_2 v_2}{q_2 r_2} $$
Because you don't know t …
- 1,809
4
votes
Does existence of magnetic monopole break covariant form of Maxwell’s equations for potentials?
Yes, introducing a magnetic monopole into Maxwell’s equations means the existence of a vector potential that is defined everywhere and everywhere continuous is not possible anymore. In particular, thi …
- 1,809