Question

Tolong bantu saya kerjakan A dan B Ya pakai Cara Pliss !!!
Kalo Ada Yang nggak jelas harap komentar

Answer 1

Gambar 1.
R3, R4 dan R5 di paralel (Rp1)
1/Rp1 = 1/R3 + 1/R4 + 1/R5
1/Rp1 = 1/12 + 1/6 + 1/4
1/Rp1 = 1/12 + 2/12 + 3/12
1/Rp1 = 6/12
Rp1 = 12/6 = 2 ohm

Rp1 di seri dengan R1 dan R6 (Rs1)
Rs1 = Rp1 + R1 + R6
Rs1 = 2 + 4 + 4
Rs1 = 10 ohm

Rs1 di paralel dgn R2 (Rp2)
1/Rp2 = 1/Rs1 + 1/R2
1/Rp2 = 1/10 + 1/15
1/Rp2 = 3/30 + 2/30
1/Rp2 = 5/30
Rp2 = 6 ohm

jadi hambatan total atau hambatan pengganti = 6 ohm

gambar 2

R1 dan R2 diseri (Rs1)
Rs1 = R1 + R2 = 5 + 15 = 20 ohm

R3 dan R4 diseri (Rs2)
Rs2 = R3 + R4 = 10 + 10 = 20 ohm

Rs1 dan Rs2 diparalel (Rp1)
1/Rp1 = 1/Rs1 + 1/Rs2
1/Rp1 = 1/20 + 1/20 = 2/20
Rp1 = 20/2 = 10 ohm

Rp1 diseri dengan R5 (Rs3)
Rs3 = Rp1 + R5 = 10 + 20 = 30 ohm

R6 dan R7 diseri (Rs4)
Rs4 = R6 + R7 = 15 + 15 = 30 ohm

Rs4 dan diparalel dengan Rs3 (Rtotal)
1/Rtotal = 1/30 + 1/30
1/Rtotal = 2/30
Rtotal = 30/2
Rtotal = 15 ohm

hambatan pengganti/hambatan total = 15 ohm

semoga tdk ada yg kutil ^^