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Results tagged with magnetic-fields
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user 25585
For questions that utilize the concept of magnetic fields (commonly denoted by the letter B), or for questions whose answers likely involve magnetic fields. More specific than the [magnetism] tag, as questions about the phenomenon & theory of magnetism do not necessarily involve the discussion of fields.
1
vote
Resulting magnetic flux in the core of a transformer
The currents you mention (I1 and I2) are due to the load on the secondary and these currents produce equal and opposite magneto motive forces. This means that the magnetic fluxes cancel (as you quite …
- 256
0
votes
How is the magnetic flux density inside a current tube affected by an inner wire?
However, there is one small "anomaly" and that is that QF reports that
the core voltage is 96.3 volts.
The lack of magnetic flux between the shield and the inner core is a red herring. Reason:
…
- 256
2
votes
2
answers
276
views
How is the magnetic flux density inside a current tube affected by an inner wire?
Background to problem
Conventional wisdom informs that the magnetic flux density inside a tube carrying current is zero everywhere. Pictorially this is represented by this finite element analysis (co …
- 256
1
vote
Reluctance of torus shaped iron core with embedded wire loop
Reluctance = $\dfrac{l_e}{\mu A_e}$ where.....
mu is the absolute permeability of the material, $\mu_0 \mu_r $
$l_e$ is the circumference of a circle at a radius r and $A_e$ is a small cross section …
- 256