The attraction and repulsion forces are codified by Coulomb's Law (attraction falls off at the square of the distance, which has a corrolary for acceleration in a gravitational field, suggesting that gravitation may be merely electrostatic phenomenon between relatively weak charges in terms of scale).

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This speed v 0 is a critical value in this problem: if I could run at this speed, then the force you would calculate between the charges using this equation would be zero: the magnetic attraction would equal the electric repulsion. So what is v 0? If you have studied waves, the format of this expression may seem familiar.

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B. Magnetic force-attraction or repulsion that arises between electrically charged particles because of their motion. It is the basic force responsible for such effects as the action of electric motors and the attraction of magnets for iron. Electric forces exist among stationary electric charges; both electric and magnetic forces exist among moving electric charges.

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I used to have the same idea as you, that is, how to use Lorentz force to explain the attraction and repulsion between magnets. I also tried to find relevant information on the Internet, but could not find it. Therefore, I used an intuitive drawing method to solve this problem, as shown in the figure below. Sep 14, 2009 · Most forces that are usually taken into account in soft matter physics are electro- or magneto-static in nature. That means that the forces are specifically due to the electric or magnetic attraction or repulsion between charges. As distances become sufficiently smaller (on the order of 10's of nm) quantum effects begin to become apparent.

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The force of repulsion (pushing) or attraction (pulling) between poles of magnets. Ferromagnetic Materials Magnetic poles Magnetic reversal Magnetism. One of the two types of electric charge; repels other negative charges and attracts positive charges. Unit of resistance equivalent to volts/amps.

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Electrostatic force, Magnetic force, Gravitational force. The first two can be attractive or repulsive. The third has only attraction. During the research made on permanent magnets, the distinction between an attraction and repulsion was tested and measured.Dec 04, 2019 · At the time, the nature of electricity and magnetism was not understood, so the underlying principle behind magnetic attraction/repulsion versus the attraction between an amber rod and fur was thought to be the same. Scientists in the 18th century suspected the force of the attraction or repulsion diminished based on the distance between two ...