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dik :
R = 440 ohm
i = 0,5 A
dit : beda potensial (V)?
dijawab :
V = i . R
= 0,5 . 440
= 220 volt
2.
dik :
i2 = 0,5 A
i3 = 1 A
i4 = 2,5 A
ditanya i1?
i1 = i4 - i2 - i3
= 1 A
3.
dik :
V = 220 volt
R = 110 ohm
ditanya : I ?
i = V/R
= 220/110
= 1 A
atau bisa juga di tulis dengan 1,0 A
4.
dik :
R1 = R2 = R3 = R4 = 2 ohm
hambatan pengganti rangkaian seri :
Rs = R1 + R2 + R3
Rs = 2 + 2 +2
= 6 ohm
hambatan pengganti rangakai pararel :
1/Rp = 1/Rs + 1/R4
1/Rp = 1/6 + 1/2
1/Rp = 4/6
1Rp = 6/4 => dibalik
= 1,5 ohm