Ka Tolong Dijawab…Pertanyaan IPA Kelas 9 SMP​

Vp/Vs = Np/Ns = Is/Ip

keterangan:

• V = tegangan.
• N = banyak lilitan.
• I = Arus.
• p = primer.
• s = sekunder.

Diketahui:

• Vp = 220 V
• Np = 800
• Ns = 200
• Ip = 2 A

Ditanyakan:

• Vs = …?
• Is = ..?
• Jenis = …?

Jawab:

Tegangan sekunder

Vp/Vs = Np/Ns

220 V/Vs = 800/200

220 V/Vs = 4

Vs = 220 V : 4

Vs = 55 V

Arus sekunder

Np/Ns = Is/Ip

800/200 = Is/2 A

4 = Is/2 A

Is = 4 × 2 A

Is = 8 A

Jenis trafo

• Vp > Vs
• Np > Ns
• Ip < Is

Jenisnya step down