I want to calculate the inductance of a coil with the following specs;
Number of Turns: 100
Loop Diameter: 25 mm
Wire Diameter: 0.5 mm
Relative Permeability: 1000
I have used the AAC online calculator at https://www.allaboutcircuits.com/tools/coil-inductance-calculator/ and got the answer of 0.627 H using the formula Lcoil≈N^2 μ0 μr (D/2) [ln(8D/d)−2]
I have also used the rimstar online calculator at https://rimstar.org/science_electronics_projects/coil_design_inductance.htm and got the answer of 0.124 H using the formula
Could someone let me know which one of these is right?
Many thanks.
Number of Turns: 100
Loop Diameter: 25 mm
Wire Diameter: 0.5 mm
Relative Permeability: 1000
I have used the AAC online calculator at https://www.allaboutcircuits.com/tools/coil-inductance-calculator/ and got the answer of 0.627 H using the formula Lcoil≈N^2 μ0 μr (D/2) [ln(8D/d)−2]
I have also used the rimstar online calculator at https://rimstar.org/science_electronics_projects/coil_design_inductance.htm and got the answer of 0.124 H using the formula
Could someone let me know which one of these is right?
Many thanks.