Magnetic Field Strength Calculator







Formula

The formula to calculate the magnetic field strength \( H_s \) is:

\[ H_s = \frac{0.4 \pi \times N_p \times I_p}{l_e} \]

Where:

Definitions

Number of Turns (Np): The number of turns of the primary coil.

Primary Current (Ip): The current through the primary coil, typically measured in amperes (A).

Effective Magnetic Path Length (le): The length of the magnetic path in the core, measured in centimeters (cm).

Magnetic Field Strength (Hs): The intensity of the magnetic field in the core, measured in amperes per centimeter (A/cm).

Example Calculation

Example: Calculate the magnetic field strength

Step 1: Use the formula:

\[ H_s = \frac{0.4 \pi \times 100 \times 0.5}{10} \]

Step 2: Calculate the value:

\[ H_s = \frac{0.4 \pi \times 50}{10} = 6.28 \text{ A/cm} \]