All Questions
Tagged with electromagnetism experimental-physics
193
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Length of helix in one time period [closed]
How to find the length of a helix in one time period?
In the case of a particle suspended at the origin and a magnetic field along the $y$ axis we know that the time period will be equal to $2\pi/aB$ ...
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Disagreement between theoretical and experimental inductance of a coil
I have a coil of 20 AWG enameled copper magnet wire with approximately 270 turns: 9 layers of 30 turns. The coil is tightly packed with an overall height of about 30 mm, an overall outer diameter of ...
- 1,302
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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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Hysteresis curves of a ferromagnet magnetized below saturation
I am confused about the qualitative behavior of ferromagnetic materials. Referencing the diagram below, I understand that magnetizing a ferromagnet from point A to point C (its saturation ...
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If we use Negative Ions as probe for nuclear reactions, will they get deflected?
I am studying the basics of Nuclear Physics, and just read about the Rutherford experiment.
My question is if we use Negative Ions as probe for nuclear reactions, will they get deflected?
If yes then ...
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Measurement of Electric field
I am aiming to measure the strength of an electric field at different positions in space. The electric field is generated by a coil, which is driven by an AC current. This work is based on this paper: ...
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3
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Cavendish experiment and electromagnetism
Flat Earther's deny the Cavendish experiment at all costs, and it's useless to debate with them, but I learn a lot by watching the nonsense they talk about and studying it. They say that the masses ...
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Atoms in the cavendish torsion balance
Some people who try to deny the Cavendish Experiment say that the masses attract each other because of the atoms, not gravity. Doesn't an atom have a null electric field by nature? Is there any other ...
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How can it be "unfortunate" while this is what the experiments want?
In John Gribbin's Ten Tantalizing Truths, the author discusses the cyclotron:
for a particular mass as the particles spiral outward, the rotation frequency stays constant, because the particles are ...
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Do we experimentally know how a magnet reacts in a curling / non-zero-curl magnetic field?
There are two possible formulas for the magnetic force on a magnetic dipole moment due to the inhomogeneity of the magnetic field:
$$ \vec{F}_{A} = \nabla (\vec{m}\cdot\vec{B}) \qquad\text{ and }\...
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Does the EMF of a battery change with time?
OK, so... I know that batteries provide less and less energy with time. My question is- is that a result of a decrease in the EMF of a cell or an increase in the internal resistance of the cell or ...
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Anisotropic Behavior of Glass in the Faraday Effect Experiment
I'm currently working on an experiment that uses the Faraday effect to determine the Verdet constant of SF-57 glass.
Basically, similar to the photo above, I have a LED that generates a 405nm light. ...
- 23
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Had a real experiment ever been done to demonstrate and calculate the magnetic field of a rotating charged disk? Or only thought experiments?
I have been trying to find if a real experiment has ever been done to prove and calculate the magnetic field of a rotating charged disk, whether it's a conducting or a non-conducting charged disk. All ...
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The physics behind a homemade particle accelerator
I have made a particle accelerator, like the one in the following image.
homemade particle accelerator
When a metallic pellet passes through the coil, it lights up and generates a magnetic field ...
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Understanding the Magneto-optical trap
I am reading about this apparatus at Wikipedia: https://en.wikipedia.org/wiki/Magneto-optical_trap
And there is the following sentence which I don't understand:
"As atoms travel away from the ...
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