Magnetic force: conservative or not? - Physics Forums
2007年6月5日 · The Lorentz force on a point charge moving in a constant magnetic field depends on its velocity, so it seems the magnetic force is non-conservative. Other criteria such as vanishing curl are also not met. Yet, since the Lorentz force is always perpendicular to the velocity, it can never change the kinetic energy of the charged particle.
Is Magnetic force conservative? - Physics Forums
2015年11月7日 · Yes, magnetic force is a conservative force. This means that the work done by magnetic force on an object is independent of the path taken by the object and only depends on the initial and final positions of the object. Why is magnetic force a conservative force? Magnetic force is a conservative force because it follows the principle of energy ...
Force between two neodymium permanent magnets - Physics …
2020年3月12日 · In summary: J_z0Oa_9RRAIn summary, the conversation discusses the calculation of magnetic force between two magnets and the effects of two magnetic fields on each other. The first question is about the calculation of magnetic force, while the second question is about the interaction between two magnetic fields.
Is the magnetic field conservative or nonconservative? - Physics …
2016年11月27日 · A nonconservative magnetic field is one in which the work done by the magnetic force on a particle moving in a closed path is not zero. This means that the starting and ending points of the path have different potential energies, and the work done by the magnetic field is dependent on the path taken.
Magnets' Repelling Force -- How to calculate it - Physics Forums
2017年5月30日 · In summary, when calculating the repelling force between 2 dissimilar magnets, one can use the formula R(AB) = r(A)r(B) = sqrt(R(AA))sqrt(R(BB)). This may not be exact, but it is a better approximation than assuming the forces are additive.
Solved Part A Consider a magnetic force acting on an - Chegg
A magnetic force is exerted on a stationary electric charge in a uniform magnetic field. The direction of the magnetic force acting on a moving charge in a magnetic field is perpendicular to the direction of the magnetic field. A magnetic force is exerted on an electric charge moving through a uniform magnetic field.
Formula to calculate the pull force between a magnet and a steel …
2019年9月5日 · As others have mentioned, calculating this force is not so easy, the flux density of the magnet for example will vary according to the load line and the introduced reluctance from the steel. An easy one though is the copper plate spacer, since PM's are a DC field, the copper with its relative permeability of ~1 simply acts as if it were an air gap.
Calculate Magnetic Force on Iron: B0 & Cylinder - Physics Forums
2009年11月17日 · To calculate the magnetic force on iron using B0 and a cylinder, you will need to use the following equation: F = B0 * μ0 * N^2 * A, where B0 is the magnetic field strength, μ0 is the permeability of free space, N is the number of turns in the coil, and A is the cross-sectional area of the cylinder.
Why do the magnetic force does no work? - Physics Forums
2010年5月3日 · The magnetic force is not doing the work, this shown trivially by examination of the Lorentz force. The work is actually being done by electric fields. What happens in the case of magnets is that when the objects start to move, the magnetic field undergoes a …
Is the Magnetic Force Really Doing No Work? - Physics Forums
2008年4月15日 · The real issue here is that the velocity is perpendicular to the magnetic field that is why the only responsible of the work done is the electrostatic force. This is the Lorentz force law. Now, if we place two permanent magnet close to each other, who is responsible for the attraction or repulsion, electrostatic force or magnetic force?
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