What is the inductance of solenoid?

solenoid is a wire wound in a helix that produces a magnetic field as the electric current passes and turns the coil into an electromagnet. The inductance of solenoid is its ability to withstand changes in the flow of electric current based on the magnetic field strength that the current creates. It is like an electrical equivalent of inertia present in physical objects, and there is also a way to express the amount of energy stored in a magnetic field generated by solenoid. It depends on a series of variables and is expressed in the international system (SI), Henry (H), which is equivalent to 1 Weber on Ampere (1 WB/A). Induction is calculated by means of relatively complex equations, but the factors that affect it are relatively easy to understand and have to do with the physical properties of solenoid and how wire is wired. Basically, the denser the coil and more turns, the higher the inductance of the solenoid.

Four FactorsThey affect solenoid inductance. Each of these factors, accepted separately, assumes that all other possible variables are constant. This means that everyone is examined as a separate reason for affecting inductance. The first factor is the number of loops or coil wraps, which increases the inductance with increasing the number of loops.

The solenoid induction is also influenced by the diameter of the solenoid itself. The larger the diameter, the higher the inductance. This is expressed as an area of ​​solenoid cross -section. If the coil is assumed to be a cylinder, it is an area of ​​a circle forming either the end of the cylinder. Induction increases with increasing the circle area.

The length of the coil also affects the solenoid inductance. All other factors remain unchanged, extending or stretching the coil reduce inductance. Shortening or compressing the coil causes an increase in inductance.

Adding the core material to solenoid can significantly affect its inductance. The core is sometimes added to solenoid from many of manyThe reasons and adding the core material can affect the inductance in both directions, depending on the ownership called throughput, which is a measure of how well the material distributes electric current. This is not the same as resistance, which is a measure of how well the material allows the current to flow through it. The inductance of solenoid is directly influenced by the permeability and the core with higher permeability will lead to increased induction, unlike the core with lower permeability.