Understanding Magnetic Force: Formulas and Terminology

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Discussion Overview

The discussion revolves around calculating the force between two magnetic fields, specifically in the context of magnetized objects. Participants explore the relevant formulas and terminology associated with magnetic forces and energy in magnetic fields.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant seeks a formula to calculate the force between two magnetic fields (B1 & B2).
  • Another participant clarifies that magnetic fields do not exert forces on each other but rather on moving charged particles, electric currents, or magnetized objects.
  • A participant refines the question to focus on the force between two magnetized objects and introduces a formula for magnetic energy and its relation to force.
  • A later reply requests clarification on the terms 'a' and 'volume' in the context of magnetic fields.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the original question regarding the force between magnetic fields, as there is a clarification about the nature of forces involved and the specific context of magnetized objects.

Contextual Notes

There are unresolved definitions and assumptions regarding the terms used in the discussion, particularly concerning the formula for magnetic energy and its application to calculating force.

neo2100
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this is a very low level question:

I want to calculate the force that it is between two magnetic field .

PLZ give me a formula of it for B1 & B2.
 
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Magnetic fields don't exert forces on each other. Magnetic fields exert forces on moving charged particles, or on electric currents, or on magnetized objects.
 
I know that but I say my question in bad way.

mainly my question is about the force between two magnetized objects that have magnetic field (B1 & B2).
 
neo2100 said:
I know that but I say my question in bad way.

mainly my question is about the force between two magnetized objects that have magnetic field (B1 & B2).
Suppose the total magnetic energy stored in a system is

W = (1/2μ0)∫B2 dVvolume

Then the force in direction x is given by

Fx = ∂W/∂x

Bob S
 
thank you.

PLZ tell me that what 'a' & 'volume' means in a magnetic field?
 

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