Transformator step-up dengan jumlah lilitan primer 400,lilitan sekunder 800,tegangan primer 100,daya listrik 500 watt,efisiensi trafo 80%.Hitung:A.Tegangan seku

diket :
Np = 400
Ns = 800
VP = 100 v
Pp = 500 w
ef = 80 %
dit : Vs , Ps , Ip & Is ?
jwb :
# Teg. sekunder
Vs = ( Ns . Vp ) / Np
Vs = ( 800 . 100 ) / 400
Vs = 80.000 / 400
Vs = 200 volt
# daya sekunder
Ps = ( ef . Pp ) .100%
Ps = ( 80% . 500 ) . 100%
Ps = 400 watt
# Arus primer
Ip = Pp / Vp
Ip = 500 / 100
Ip = 5 A
# Arus sekunder
Is = Ps / Vs
Is = 400 / 200
Is = 2 A
trafo step up