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Results tagged with electromagnetism
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user 242972
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
How is there a magnetic field value along the loop?
The problem is in the following.
You're talking about the circulation theorem which states that for any surface $D$ and its boundary $\partial D$ the following relation holds
$$
\int \limits_D (\vec{j …
1
vote
Accepted
Why should there be an induced electric field if magnetic field is constant?
For the first point - the ring actually acquires its angular velocity while angular velocity of cylinder changes from $0$ to $w$. During this process, magnetic field inside changes from $0$ to $\mu_0 …