because the lightning discharge is always a combination of electromagnetic and mechanical effects, with enormous energy, with incredibly steep current rate of rise (gamma).
Dahil ang naglalabas ng kidlat ay palaging isang kumbinasyon ng electromagnetic at mekanikal epekto, na may napakalaking enerhiya, na may hindi kapani-paniwalang matarik na kasalukuyang rate ng pagtaas (gamma).