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Hermann Härtel – European Journal of Physics Education, 2021
The question of whether Faraday's flux law is universal or whether there are exceptions has long been controversial. This discussion seemed to have recently concluded in favor of the generality of Faraday's Flux Law. The present article raises this question again with the aid of some rather simple measurements carried out on a Faraday generator.…
Descriptors: Science Instruction, Scientific Principles, Measurement, Energy
Härtel, Hermann – European Journal of Physics Education, 2020
In the light of own measurements on a Faraday generator, the well-known theories concerning Unipolar Induction and the Faraday paradox seem to be problematic. On the other hand, all results obtained, and all other processes described as a paradox in connection with the Faraday generator can be explained without contradiction based on the theory of…
Descriptors: Magnets, Physics, Theories, Scientific Concepts
Härtel, Hermann – European Journal of Physics Education, 2018
The classical physics treatment of "Electromagnetic Induction" is based on Faraday's Law and Lorentz Force. This paper presents an alternative approach, based on Wilhelm Weber´s Fundamental Force Law of Electrodynamics. It covers mutual induction, self-induction, parallel and anti-parallel currents, and currents in the same and opposite…
Descriptors: Energy, Scientific Concepts, Scientific Principles, Physics
Härtel, Hermann – European Journal of Physics Education, 2018
The well-known historical development of Electromagnetism, strongly influenced by the work of Faraday and Maxwell, has led to the introduction of the magnetic field as an important component to explain the diverse phenomena of electromagnetic induction. This historical development is compared in the form of a thought experiment with a possible…
Descriptors: Physics, Science Instruction, Scientific Concepts, Electronics