Theory about parallel action experiment

I have done an experiment named parallel action experiment, which shows the movement of a test coil in a magnetic field that is not allowed by Lorentz force law. Please see the video

The setup of this experiment is shown in Figure 1. The test coil carries a current that is influenced by the magnetic field B created by the magnet. The test coil, which is plane and perpendicular to its axle of rotation, can turn only in its plane. The video shows, when the current flows, signaled by the blinking of the led, the coil rotates in its plane.

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Lorentz parallel action experiment

Does Lorentz force exert a force parallel to the current? NO. However, this experiment shows that, YES, it does exist a force parallel to the current. This experiment makes a plane coil turn in the magnetic field of a magnet. The axle crosses the plane of the coil perpendicularly in the center. Only force parallel to the current can make it turn.

First photography: Will this coil turn?
Second photography: The coil and the magnet.
Third photography: The led will turn on when current flows in the coil. The referential system of the setup.

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Corrected law and Perpendicular action experiment


In my Lorentz perpendicular action experiment, (see Lorentz perpendicular action experiment and Lorentz force law, blogspot academia) the movement of a test coil proved experimentally that the magnetic force on it does not verify the Lorentz force law and in consequence, showed a flaw of the law.

In this experiment, the magnetic field of a magnet exerts a force on the test coil and makes it turn (see Figure 1). According to the Lorentz force law, the test coil should turn about the axle whether it is parallel to x-axis or y-axis. But the experiment showed that it does not turn when the axle is parallel to y-axis.

In the following, I will explain the experimental result using the corrected law of magnetic force that I proposed in Correct differential magnetic force law, blogspot acdgemia, and show that this law describes well the movement of the test coil.

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