Magnetostatics

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Magnetic Energy

Potential energy of a magnetic in a magnetic field,

 , where:

E = Potential energy in Field (J)

m = Magnetic Moment (A*m2)

B = Magnetic B-Field (T)

 

Magnetic Flux

 , or for a constant B:

 , where:

 =Magnetic Flux (Wb)

B = Magnetic B-Field (T)

Magnetic H-Field

 , where:

H = Magnetic H-Field (A/m)

B = Magnetic B-Field (T)

 = Magnetic Constant (H/m), written as mu nought (u0)

M = Magnetization (A/m)

Magnetic Moment of a Magnet

 , where:

m = Magnetic Moment of a Magnet (A*m2)

p = Magnetic Pole Strength (A*m)

L = Distance Between Poles (m)

Magnetic Moment of a Solenoid (Magnetic Moment of a Loop)

The magetic moment of a loop or solenoid, also known as the magnetic dipole moment, is defined as follows:

 , where:

m = Magnetic Moment (A*m2)

I = Current (A)

A = Area (m2)

N = Number of turns

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