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Just prior to a strike by union employees on a university campus, union members spend a lot of money on pamphlets stating why students have the same interests as the soon-to-be-striking employees and why they should support them. What do the union's actions illustrate?
Induced Voltage
Voltage generated in a conductor or coil due to a change in magnetic flux, according to Faraday's law of electromagnetic induction.
Eddy Current
Circular induced current contrary to the main currents. Eddy currents are a source of heat and power loss in magnetically operated devices.
Hysteresis
The phenomenon in which the state of a material lags behind changes in the effect causing it, such as the lagging of magnetic flux density behind the magnetizing force.
Spike Suppression
Techniques or devices used to protect electronic circuits from sudden transient voltages, which could cause damage or malfunction.
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