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