Learn what an inductor is and how it works in this basic electronics tutorial course. First, we discuss the concept of an inductor and explain the physics behind how the magnetic field inside of the inductor coil can store energy. We then discuss how the voltage across an inductor is proportional to how fast the current through the inductor changes. We close by discussing how the magnetic field is concentrated inside of the inductor. In this electronics course, we cover how an inductor works and how to use inductors in circuits. We explain how capacitors and inductors are closely related, and how to use inductors in electric circuits..