When a conductor carries more current on the surface as compared to core, it is due to___________?
Correct answer: C. skin effect
- A. permeability variation
- B. corona
- C. skin effect
- D. unsymmetrical fault
- E. none of the above
Explanation
Skin effect causes alternating current to concentrate near the outer surface of a conductor, leaving less current in its core. Corona is a discharge around high-voltage conductors and does not explain this current distribution.
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