Understand Magnetic Circuits: Energy Requirements Explained

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SUMMARY

This discussion clarifies the fundamental differences between electrical and magnetic circuits, specifically focusing on energy requirements. In magnetic circuits, energy is only needed to establish magnetic flux, as there is no energy loss due to reluctance, unlike in electrical circuits where energy is continuously required to maintain current flow. The analogy between electric current and magnetic flux is emphasized, highlighting that magnetic flux does not involve the movement of particles carrying kinetic energy.

PREREQUISITES
  • Understanding of basic electrical circuit concepts
  • Familiarity with magnetic circuit principles
  • Knowledge of energy conservation in physical systems
  • Basic grasp of electromagnetic theory
NEXT STEPS
  • Research the principles of magnetic reluctance and its impact on circuit efficiency
  • Explore the relationship between magnetic flux and electric current in detail
  • Study energy conservation laws in electromagnetic systems
  • Learn about applications of magnetic circuits in engineering
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Students and professionals in electrical engineering, physicists, and anyone interested in the principles of magnetic circuits and their applications in technology.

dhruv.tara
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While reading my text about the differences between the electrical and magnetic circuits, there was one point that I couldn't justify myself with.

... There is no waste of energy due to reluctance in a magnetic circuit and therefore energy is required only to create a magnetic flux but not to maintain it, unlike the electrical circuits.

Can anyone explain me or let me have a better picture of this?
 
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Electric current is the directed motion of charges inside the conductors. Magnetic flux, the analogue of the electric current for magnetic circuits does not represent a flux of particles carrying some kinetic energy.
 

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