Difference between an inductor and a solenoid

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Discussion Overview

The discussion revolves around the differences between inductors and solenoids, exploring their definitions, applications, and characteristics within the context of electrical engineering and circuit design.

Discussion Character

  • Technical explanation, Conceptual clarification, Debate/contested

Main Points Raised

  • Some participants propose that a solenoid is a specific type of inductor shaped like a cylinder.
  • Others argue that inductors are primarily used to control current flow and store magnetic energy, while solenoids are typically designed to generate a magnetic field.
  • A participant notes that efficient inductors often incorporate materials like ferrite or laminated steel to enhance the magnetic field.
  • One participant mentions the etymology of "solenoid," linking it to the Greek word for pipe, and states that RF inductors wound in a cylinder are also referred to as solenoids.

Areas of Agreement / Disagreement

Participants express differing views on the definitions and applications of inductors and solenoids, indicating that multiple competing perspectives remain without a clear consensus.

Contextual Notes

The discussion does not resolve the nuances of how inductors and solenoids are categorized or their specific applications, leaving some assumptions and definitions open to interpretation.

Jules18
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I've just recently seen the term "inductor" for the first time and it kind of threw me off.
I'm just wondering, what's the difference between an inductor and a solenoid, if there is one?
 
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A solenoid most accurately describes an inductor wound in the shape of a cylinder.
 


Inductors are generally used to control current flow as a lossless impedance (jwL), as part of a resonant circuit (LC), or as a filter or reactance in a power supply. They are also used to store energy in switching supplies. The main difference is that inductors are used to control current and store magnetic energy, and solenoids are usually designed to provide a magnetic field. Efficient inductors have ferrite or laminated steel in them to enhance the B field.
 


Bob S said:
Inductors are generally used to control current flow as a lossless impedance (jwL), as part of a resonant circuit (LC), or as a filter or reactance in a power supply. They are also used to store energy in switching supplies. The main difference is that inductors are used to control current and store magnetic energy, and solenoids are usually designed to provide a magnetic field. Efficient inductors have ferrite or laminated steel in them to enhance the B field.

That does seem to be the usual intent. The etymology derives from the greek solen, for pipe. RF inductors wound in a cylinder are referred to as solenoids, as well.
 

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