PHYIC CALCULATOR
Inductance Calculator
A precise tool.
What is the Inductance Calculator & How does it work?
Inductance is a measure of an electrical component’s ability to store energy in a magnetic field when current flows through it. The formula for calculating the inductance ( L ) of a coil is given by:
( L = N^2 cdot mu cdot frac{A}{l} )
L = Inductance (in Henrys, H)
N = Number of turns
( mu ) = Core permeability (in Henrys per meter, H/m)
A = Cross-sectional area of the coil (in square meters, mΒ²)
l = Length of the coil (in meters, m)
N = Number of turns
( mu ) = Core permeability (in Henrys per meter, H/m)
A = Cross-sectional area of the coil (in square meters, mΒ²)
l = Length of the coil (in meters, m)
The inductance depends on the number of turns in the coil, the permeability of the core material, the cross-sectional area of the coil, and its length. Understanding these parameters helps in designing coils with specific inductance values for various applications.
Parameters
Result
β
Frequently Asked Questions
What is inductance?
Inductance is the measure of a component’s ability to store energy in a magnetic field when current flows through it.
How do I calculate the cross-sectional area of a coil?
The cross-sectional area can be calculated by multiplying the radius squared (ΟrΒ²) for circular coils or using the appropriate formula for other shapes.
What is core permeability?
Core permeability is a measure of how much a material can support magnetic flux density in an electromagnetic field. It’s usually given in Henrys per meter (H/m).
How does the number of turns affect inductance?
The inductance increases with the square of the number of turns, meaning doubling the turns will quadruple the inductance.
What units are used for inductance?
Inductance is measured in Henrys (H).
Can I use this calculator for air-core coils?
Yes, you can set the core permeability to that of free space (approximately 4Ο Γ 10β»β· H/m) for air-core coils.
How does the length of the coil affect inductance?
Inductance is inversely proportional to the length of the coil; a longer coil will have less inductance for the same number of turns and other parameters.
Results are for informational purposes only and do not constitute professional advice.