modmix said:what about this:
Given we have just R and L (no C).
They from a triangle: Z^2 = R^2 + L^2.
=> L = sqrt(Z^2 - R^2) = 182 Ohm.
hth
Ulli
sure. that's why i deleted my posting - not fast enough...technician said:That is not correct, you need to know the frequency as has been hinted at. XL = ωL
Inductance is a physical property of an electrical circuit that describes the ability of a circuit to store energy in the form of a magnetic field.
Inductance is measured in units called Henry (H), named after the scientist who discovered it. It is typically measured using an inductance meter or by using the formula L = V/I, where L is inductance, V is voltage, and I is current.
Inductance plays a crucial role in DC electromagnet coils as it determines the strength of the magnetic field produced by the coil. The higher the inductance, the stronger the magnetic field.
The number of turns in a DC electromagnet coil is directly proportional to its inductance. This means that increasing the number of turns will also increase the inductance, resulting in a stronger magnetic field.
The inductance of a DC electromagnet coil can be affected by various factors, including the number of turns, the diameter of the coil, the material of the core, and the current passing through the coil. Additionally, the presence of nearby ferromagnetic materials can also affect the inductance.