Question

How does inductance affect current?

Answer 1

1. An inductor is a passive electrical component made of a coil of wire that is made to benefit from the interaction between electricity and magnetism when an electric current flows through the coil.
2. A fixed number of wire turns per unit length make up the central core area $\left(A\right)$ of an inductor coil $\left(l\right)$.
3. Therefore, every current $I$ that travels through a coil of $N$ turns that is coupled with an amount of magnetic flux has a flux linkage of $N$ and will generate a magnetic flux in the opposite direction of the current flow.
4. Then, in accordance with Faraday's law, any modification to this magnetic flux connection results in a self-induced voltage of: $V_L=N\frac{d\varphi }{dt}or{V}_L=\frac{\mu N^{2}A}{l}\frac{di}{dt}$

Where, $N=$The number of turns, $A=$The cross-sectional Area in $m^2$, $\Phi =$The amount of flux in Weber's, $\mu =$The Permeability of the core material, $l=$The Length of the coil in meters, and $\frac{di}{dt}=$The Currents rate of change in $amps/second$.

Hence,

1. An inductor acts as a power load when the current through it is increased because it drops a voltage that is the opposite of the direction the current is flowing. The inductor is said to be charging in this situation because its magnetic field is storing more and more energy.
2. Current changes are frequently resisted by inductors. An inductor "resists" a change in current through it by creating a voltage between its leads that has the opposite polarity as the change. An inductor has to have a greater current flowing through it in order to retain more energy.