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1066 Chapter 23 | Electromagnetic Induction, AC Circuits, and Electrical Technologies
Figure 23.52 An LC circuit is analogous to a mass oscillating on a spring with no friction and no driving force. Energy moves back and forth between the inductor and capacitor, just as it moves from kinetic to potential in the mass-spring system.
Glossary
back emf: the emf generated by a running motor, because it consists of a coil turning in a magnetic field; it opposes the voltage powering the motor
capacitive reactance: the opposition of a capacitor to a change in current; calculated by
PhET Explorations: Circuit Construction Kit (AC+DC), Virtual Lab
Build circuits with capacitors, inductors, resistors and AC or DC voltage sources, and inspect them using lab instruments such as voltmeters and ammeters.
Figure 23.53 Circuit Construction Kit (AC+DC), Virtual Lab (http://cnx.org/content/m55420/1.2/circuit-construction-kit-ac-virtual- lab_en.jar)
This OpenStax book is available for free at http://cnx.org/content/col11844/1.14