All Questions
6
questions
1
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Do twisted pair wires create a helical shaped magnetic field if parallel electrical currents are run through the two wires?
I would like to know if the shape of the magnetic field around twisted pair insulated wires will be a helical shaped magnetic field if both wires have parallel electrical current running through them.
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- 478
0
votes
2
answers
416
views
How do we know the direction of magnetic field that we assign to it?
In my class, I was taught about Biot Savart Law and how to calculate direction of magnetic field as a cross product of radial vector from current element and the length vector of current element.
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user240345
0
votes
1
answer
451
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Forces between current carrying wires [closed]
Why the wires bearing current in the same direction don't attract to each other?
- 17
8
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2
answers
1k
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What empirical evidence is there for displacement current?
I wonder what more or less direct measurements of the displacement current exist. I know that the existence of em waves demonstrates its existence, though somewhat indirectly. I also know that there ...
- 3,138
2
votes
0
answers
113
views
Strength of Magnet in Magnetic Bearings
While reading about magnetic bearings, one reads about passive/active magnetic bearings. By passive, one means no electric current is put into the bearing for attaining magnetic levitation/flux. In ...
- 303
0
votes
1
answer
1k
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Maximum magnetic strength achievable
What will be the maximum magnetic strength to which a piece of ferromagnetic substance can be magnetised?
What will the maximum strength possible for a piece of iron?
How would the shape of the ...
- 1,159