Do non conductors have magnetic flux?
Answers
Why aren't magnetic fields affected when a conductor is placed in the field?
magnetic-fields electric-fields
For electric fields when a conductor such as an aluminium sheet is placed in the field the field lines get affected due to the conductor.But when a conductor is placed in a magnetic field there will be no change in the magnetic field lines.For example if there are two parallel wires carrying an electric current magnetic (or electric) field lines when a conductor is placed near it , it is better to speak the other way round. The electric field lines get distorted in the presence of a conductor, because the electric field could could induce some charge on the conductor and hence the electric field due to that conductor opposes the external field lines. That's why the structure of field lines change.
A magnetic field affect only charged particles in motion. The equation for magnetic force is given by:
F⃗ mag=qv⃗ ×B⃗
From this equation, it is clear that if the velocity of the charged particle in a magnetic field is zero, then it will experience no magnetic force.
In the case of conductor, even though there are free charges on it, they are in equilibrium and hence not affected by the magnetic field, since the net velocity vector of a charged particle is zero. But, if you place the conductor in a time-varying magnetic field, then the conductor experiences some force, which is due to the electric field generated by the time-varying magnetic field:
∂B⃗ ∂t=−∇×E⃗
What that happens between two current carrying wires is that the magnetic field of one is affecting the moving charges on the other. That's why the magnetic field lines are not affected by the conductor.
Explanation:
In physics, specifically electromagnetism, the magnetic flux (often denoted Φ or ΦB) through a surface is the surface integral of the normal component of the magnetic field flux density B passing through that surface. The SI unit of magnetic flux is the weber (Wb) (in derived units: volt {\displaystyle \cdot }\cdot seconds), and the CGS unit is the maxwell. Magnetic flux is usually measured with a fluxmeter, which contains measuring coils and electronics, that evaluates the change of voltage in the measuring coils to calculate the measurement of magnetic flux.