Self-inductance is the property of a coil (or circuit) that allows it to oppose the change in current flowing through it by generating an electromotive force (EMF). This EMF is proportional to the rate of change of current.
5 Must Know Facts For Your Next Test
Self-inductance is measured in henries (H).
The inductance $L$ of a coil depends on its geometry and the permeability of the core material.
According to Faraday's Law, the induced EMF $\varepsilon = -L \frac{dI}{dt}$, where $L$ is self-inductance and $\frac{dI}{dt}$ is the rate of change of current.
A higher self-inductance means a greater opposition to changes in current.
In an AC circuit, self-inductance causes a phase difference between voltage and current.