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← ScienceWhich outcome results when high-voltage transmission lines experience ice accumulation?
A)Corona discharge increases significantly✓
B)Skin effect redistributes current flow
C)Dielectric strength of air increases
D)Magnetic field strength attenuates rapidly
💡 Explanation
When moist air surrounds the irregularities on the ice surface combined with an immense electromagnetic field, the increased electric field intensity causes ionization of the air (Corona discharge), because this exceeds air's breakdown voltage; therefore, loss from corona increases, rather than skin effect, insulation, or magnetism.
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