An Inductor is a coil of wire - a miniature solenoid - used in circuits to oppose sudden changes in current.
Inductors don't like change. They will do anything to oppose change!
Inductors like to build up a magnetic field within themselves (to store energy) - this inhibits the flow of current through the circuit.
Once a magnetic field is done being "built" inside the inductor - current flows freely around the circuit!
Remember: Inductors are pretty useless unless current is changing (increasing or decreasing).
The capacity of an inductor is a factor of its geometry (area, radius, space between coils) and the number of coils (n).
Summary of main concepts:
Source: http://hyperphysics.phy-astr.gsu.edu/hbase/electric/indtra.html
under construction
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