ang skin effect po ay kung saan ang AC ay nagcoconduct along the surface ng conductor, especially po at high frequencies, the result is, lower effective cross sectional area of the conductor which also contributes to higher resistance
[R= {(rho)(L)}/A], at tumataas po ang loss dahil dito, kaya minsan AC at high frequencies ay gumagamit sila ng conductors na narrow tubes para tipid na rin sa material at weight (anyway, sa surface naman yung conduction).
sa corona effect naman po ay yung discharge sa surface ng conductor pag nagreach ng certain limit yung voltage (not sure).
