Sebuah trafo memiliki efisiensi 75%. tegangan inputnya 220v dan tegangan outputnya 110 v. jika kuat arus primer yg mengalir 2A, kuat arus sekundernya adalah?
FadlyHermaja
Η = 75% Vp = 220 Volt Vs = 110 Volt Ip = 2 A Is = ? η = {(Vs * Is) / (Vp * Ip)} * 100% 75% = {(110 * Is) / (220 * 2)} * 100% 0,75 = Is / 4 Is = 0,75 * 4 = 3 A
Vp = 220 Volt
Vs = 110 Volt
Ip = 2 A
Is = ?
η = {(Vs * Is) / (Vp * Ip)} * 100%
75% = {(110 * Is) / (220 * 2)} * 100%
0,75 = Is / 4
Is = 0,75 * 4 = 3 A