Uji Kompetensi Bab 7

Uji Kompetensi bab 7 halaman 222 no 7
a) 1/R1paralel =1/4 + 1/4 =1/2
R1paralel = 2 ohm.
R1 seri = 3 + 4 + 2 + 3 = 12 ohm

1/R2paralel =1/4 + 1/ R1seri = 3/12 + 1/12 = 4/12 = 1/3
R2paralel = 3 ohm

R2seri = R2paralel + 2 = 3 + 2 = 5 ohm



b) 1/R1paralel = 10/56 + 10/ 56 = 20/56 = 5/14 ohm
R1 paralel = 14/56 ohm

R1 seri = 68/10 + 14/5 + 22/10 = 112/10=11,2 ohm

R2seri = 10 + 10 = 20 ohm
R3seri = 10 + 10 = 20 ohm

1/R2paralel = 1 / R2seri + 1/ R3seri = 2/20 = 1/10
R2paralel = 10 ohm

R4seri = 1,8 + 10 = 11,8 ohm

1/R3paralel = 112/10 + 118/10 = 230/10 = 23 ohm
R3paralel = 1/23 ohm

c) 1/R1paralel = 1/6 + 1/6 = 1/3 ohm
R1paralel = 3 ohm

R1seri = 6 + 3 = 9 ohm.

1/R2paralel = 1/6 + 1/9 = 5/18 ohm
R2paralel = 18/5 ohm

R2seri = 6 + 18/5 = 30/5 + 18/5 = 48/5 ohm

By : Louisa A.W. XL / 28