Rumus-rumus listrik dinamis

1.   Arus Listrik => I =  q/t

       I = V/R

2. Tegangan Listrik => V = W/q

   V = I.R

3. Hambatan Listrik => R = V/I

                                         R = p.l/A

4. Energi Listrik =>  W = V.q

                                    W = V.I.t

                                    W = I².R.t

                                    W = 0,24.I².R.t (untuk kalori)

5. Daya Listrik => P = W/t

                                P = V.I

                                P = V²/R

Keterangan :

I = arus listrik (Ampere)

q = muatan listrik (Coulomb)

t = waktu (Sekon)

V = tegangan listrik (Volt)

W = usaha/energy listrik (Joule)

R = hambatan listik (Omega)

P = hambatan jenis (Omega meter)

l = panjang kawat penghantar (meter)

A = luas kawat penampang (m²)