How do you calculate the inductance of an air coil?

How do you calculate the inductance of an air coil?

The formula is: The micro henrys of inductance in a coil = (N^2)(D^2)/(18D + 40L) where “N” equals the number of rings in the coil, “D” equals the diameter of the coil and “L” equals the length of the coil.

How do you calculate inductance?


  1. Get the huge list of Physics Formulas here.
  2. L = ΦN/I.
  3. Question- An inductor coil contains 550 turns of copper wire which generates a magnetic flux of 20 Wb when it passes a direct current of 5 amps.
  4. Answer- We see that we have Φ as 20 Wb and N is 550.

What is the inductance of a coil?

Inductance is the name given to the property of a component that opposes the change of current flowing through it and even a straight piece of wire will have some inductance. Inductors do this by generating a self-induced emf within itself as a result of their changing magnetic field.

How do you calculate a coil?

To obtain the coil length we have to divide the result by the section of the coil determined by coil width and thickness. The coefficient 1000 is used to compensate the dimensions in [mm] with the length in [m]. For example, a coil with OD = 1600mm, ID = 508mm and T = 0,6mm results in a length of 3010 meters.

What is the value of 1 Henry?

henry, unit of either self-inductance or mutual inductance, abbreviated H, and named for the American physicist Joseph Henry. One henry is the value of self-inductance in a closed circuit or coil in which one volt is produced by a variation of the inducing current of one ampere per second.

How do you calculate the volume of a coil?

The coil volume was calculated using the equation, V = π (P/2)2 L, in which “L” represents the coil length and “P” represents the primary coil diameter.

How is henry calculated?

Inductance is measured using a unit called the Henry or H. Calculate the inductance using the following formula: Inductance = µ (N squared) A / length, where N is the number of turns in the coil, A is the cross-sectional area of the coil, and length is the length of the coil.