Fisika Sekolah Menengah Pertama bantu jawab dong ka pliss

bantu jawab dong ka pliss diket : R=400 ohm, Np=450 lilitan, Ns, = 900 lilitan, Vp = 110 V ditanya Is = ? cari nilai Vs dulu Vs/Vp = Ns/Np Vs/110 = 900/450 Vs = 110.2 = 220 V Is = Vs/R = 220/400 = 0,55 A semoga terbantu