Question

Tolong dibantu ya nomor 21 22 pakai cara :D

Answer 1

21. R1 = 2 Ω
R2 = 3 Ω

Rs = R1 + R2
           = 2 + 3
           = 5 Ω

I = V/R = 20/5 = 4 A

V pada R2 = I x R = 4 x 3 = 12 V

22. V = 220 V
I = 500 mA = 0,5 A

P = V x I = 220 x 0,5 = 110 Watt