Relativity and Cosmology


Investigation of Connection Between the Moving Magnet Conductor Problem and the Special Theory of Relativity

Authors: Henok Tadesse

The Moving Magnet Conductor problem is the problem of 'coincidence' of the effect of magnetic field in the reference frame of the magnet and the effect of electric field in the reference frame of the conductor, the effect being a definite current flowing in the conductor, for a magnet and a conductor in relative motion. In this paper, we will show that this problem will not lead to the theory of relativity, i.e. to the conclusion that absolute motion doesn't exist. This 'coincidence' occurs only in the special case in which at least one of the two ( either the magnet or the conductor ) is at absolute rest and hence is only a special case. In general, the magnet and the conductor can have a relative motion while having a common absolute motion. This is the case, for example, of a magnet - conductor experiment carried out on Earth, which has an absolute velocity of 390 Km/s . In such cases, the motion of the magnet and the motion of the conductor will have different effects even if the relative velocities are the same. We will apply Apparent Source Theory ( AST ) to this problem. In the case of light, the effect of absolute motion for co-moving light source and observer is to create an apparent change in position of the light source relative to the observer. Therefore, no fringe shift will occur in the Michelson-Morley experiment due to an apparent change of source position for the same reason that no (significant ) fringe shift will occur if the position of the source was actually, physically changed relative to the detector. Intuitively, AST can be stated as: the speed of light is equal to c - Vabs in the forward direction and c + Vabs in the backward direction, relative to the source, for a source moving with absolute velocity Vabs. This theory readily explains the Michelson-Morley experiment, the Sagnac effect and moving source experiments. AST applies not only to light sources, but also to all electromagnetic sources: sources of electric fields ( charges ) , sources of magnetic fields ( magnets or electromagnets ) and sources of gravitational fields. Therefore, for absolutely co-moving magnet and (infinitesimal) conductor, the effect of absolute velocity is to create an apparent change in position of the magnet as seen by the conductor. The procedure of analysis is to replace the real magnet with an apparent magnet and analyze the problem as if both the apparent magnet and the conductor are at rest. There will not be any current induced in the conductor because the conductor is not moving relative to the magnet ( hence relative to the apparent magnet ). Since the conductor is at rest relative to the magnet, it is also at rest relative to the apparent magnet and hence no current will be induced in the conductor. There will be no induced current in this case for the same reason that there will be no induced current in the case of magnet and conductor both at absolute rest. An intuitive way of stating the same theory is to assume that the magnetic field is carried by the real magnet, but will be distorted due to absolute motion. Therefore, absolute motion of a magnet can be detected by a co-moving observer from the distortion of its field. The magnetic field of a magnet moving with absolute velocity will become weaker in front of the magnet and stronger behind the magnet. The electric field of a charge in absolute motion will become weaker in front of the charge and stronger behind the charge.

Comments: 11 Pages.

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[v1] 2017-10-09 07:08:24

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