Question

Gambar Rangkaian listrik....Vnya diganti jadi 8 volt...R1 yang dicari...R2=6...R3=4....I=2 Ampere, maka besar hambatan R1 berapa???

Answer 1

1/R = 1/R2 + 1/R3
1/R= 1/6 + 1/4
1/R= 2/12 + 3/12
 1/R = 5/12
R = 12/5 = 2,4

R1 = x
seri = R + R1 = 2,4 + x

I = V/R
2 = 8/2,4+x
4,8 + 2x = 8
2x = 3,2
x = 1,6

jadi, R1 = 1,6