Jawaban:

bc paralel

1/Rbc = 1/4 + 1/4 = 2/4

Rbc = 4/2  = 2

Rabcd = 2+2+2 = 6

1/Rf = 1/2 + 1/2 = 2/2 = 1

Rf = 1

Rafd  1+2 = 3

Rabcd dan Rafd diparalel

1/Rp = 1/6 + 1/3 = 1/6 + 2/6 = 3/6

Rp = 6/3 = 2

Rtotal

R = 2 + Rp + 2 = 6

a. R = 6

b. i = V/R = 12/6 = 2 A

arus pada hambatan ea dan de = arus utama = 2 A

tegangan pada Rp

Vp = iRp = 2 x 2 = 4 volt

karena paralel Vp = Vabcd

Vabcd = iRabcd

4 = i x 6

i = 4/6 = 2/3

arus pd hambatan ab dan cd = 2/3 A

arus pd hambatan bc masing-masing = 1/2 x 2/3 = 2/6 A

karena paralel Vp = Vafd

Vafd = iRafd

4 = i x 3

i = 4/3 A

arus pd fd = 4/3 A

arus pd af masing-masing = 1/2 x 4/3 = 4/6 A

c.

tegangan pada hambatan ea dan de,  arus utama = 2 A

V = iR = 2 x 2 = 4 volt

arus pd hambatan ab dan cd = 2/3 A

V = iR = 2/3 x 2 = 4/3 volt

arus pd hambatan bc masing-masing = 1/2 x 2/3 = 2/6 A

V = iR = 2/6 x 4 = 8/6 = 4/3 volt

arus pd fd = 4/3 A

V = iR = 4/3 x 2 = 8/3 volt

arus pd af masing-masing = 1/2 x 4/3 = 4/6 A

V = iR = 4/6 x 2 = 8/6 = 4/3 volt

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