Magnet Power Calculator

How to Use the Calculator

1. Enter the current (I) in Amperes (A) flowing through the coil.
2. Enter the number of turns (N) in the coil.
3. Enter the length (L) of the coil in meters (m).
4. Click the "Calculate" button to compute the magnetic field strength (B).
5. The result will be displayed in Tesla (T).

Working Principle

The magnetic field strength (B) generated by a coil can be calculated using the formula B = (μ₀ * N * I) / L, where:

• B is the magnetic field strength in Tesla (T).
• μ₀ is the permeability of free space, approximately 4π × 10⁻⁷ T·m/A.
• N is the number of turns in the coil.
• I is the current in Amperes (A).
• L is the length of the coil in meters (m).

Example

If a coil has 100 turns, a current of 2 Amperes flows through it, and the length of the coil is 0.1 meters, the magnetic field strength would be:

B = (4π × 10⁻⁷ T·m/A * 100 * 2 A) / 0.1 m = 2.513 × 10⁻³ T