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← ScienceWhich mechanism causes voltage spikes when a large industrial motor abruptly shuts down?
A)Inductive flyback generates reverse current✓
B)Capacitive reactance lowers impedance broadly
C)Increased eddy currents resist change
D)Transformer core saturates uncontrollably faster
💡 Explanation
Inductive flyback generates voltage spikes because the collapsing magnetic field during shutdown induces a large reverse EMF in the motor windings; therefore, the voltage spikes surge, rather than diminished impedance due circuit capacitance slowly dissipating the magnetic fields.
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