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← ScienceWhich outcome occurs when dielectric strength is exceeded electromagnetically in a transmission line?
A)Wave interference causes signal nulls
B)Line impedance experiences self-resonance
C)Arcing initiates transient overvoltages✓
D)Skin effect reduces conductor effectiveness
💡 Explanation
When dielectric strength is exceeded, rapid ionization creates a conductive path which initiates arcing; this process creates surge voltages, caused by rapid current flow in capacitance, therefore, transient overvoltages form rather than the stated alternatives because these relate to different failure modes.
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