Magnetic field of coil

Near the center of the coil, the magnetic field is quite uniform and directly proportional to the current in the coil’s wire.

Notation:

1. \(\mu_0\) (mu_0) is vacuum_permeability.

Conditions:

1. The medium is vacuum.

2. The magnetic field is measured near the center of the coil.

Links:

1. Physics LibreTexts, similar formula 12.7.10.

magnetic_flux_density

magnetic_flux_density.

Symbol:

B

Latex:

\(B\)

Dimension:

magnetic_density

current

current flowing through the coil.

Symbol:

I

Latex:

\(I\)

Dimension:

current

length

length of the coil.

Symbol:

l

Latex:

\(l\)

Dimension:

length

coil_turn_count

Number of turns in the coil. See positive_number.

Symbol:

N

Latex:

\(N\)

Dimension:

dimensionless

law

B = mu_0 * I * N / l

Latex:

\[B = \frac{\mu_0 I N}{l}\]