Definition:Magnetic Flux

Definition

Magnetic flux is the total magnetic flux density through a given area of space.

Symbol

$\phi$

The usual symbol used to denote magnetic flux is the Greek letter $\phi$ (phi).

Its $\LaTeX$ code is \phi .

Dimension

Magnetic flux has the dimension $\mathsf {M L^2 T^{-2} I^{-1} }$.

Units

The SI unit of magnetic flux is the weber $\mathrm {Wb}$.

In the CGS unrationalised electromagnetic system, the unit of magnetic flux is the maxwell $\mathrm {Mx}$.

Conversion Factors

\(\ds \)

\(\)

\(\ds 1\)

webers

\(\ds \)

\(=\)

\(\ds 10^8\)

maxwells (or e.m.u. of magnetic flux)

\(\ds \)

\(\approx\)

\(\ds \dfrac 1 3 \times 10^{-2}\)

e.s.u. of magnetic flux

Also see

• Definition:Magnetic Flux Density

• Results about magnetic flux can be found here.

Sources

• 1969: J.C. Anderson, D.M. Hum, B.G. Neal and J.H. Whitelaw: Data and Formulae for Engineering Students (2nd ed.) ... (previous) ... (next): $1.$ Units and Abbreviations: $1.2$ SI units $(2)$ Derived units
• 1976: Ralph J. Smith: Circuits, Devices and Systems (3rd ed.) ... (previous) ... (next): Chapter $1$: Electrical Quantities: Definitions and Laws: Definitions: Table $1$-$2$: Important Derived Quantities