Understanding Magnetic Force: Formulas and Terminology

[neo2100]

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.

 

[jtbell]

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.

 

[neo2100]

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).

 

[Bob S]

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 dV_volume

Then the force in direction x is given by

F_x = ∂W/∂x

Bob S

 

[neo2100]

thank you.

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