5 Buah resistor disusun seri masing masing nilainya 20 ohm,30 ohm,40 ohm,50 ohm,60 ohm berapa nilai totalnya?,dan kemudian disusun paralel berapa nilai totalnya?

5 Buah resistor disusun seri masing masing nilainya 20 ohm,30 ohm,40 ohm,50 ohm,60 ohm berapa nilai totalnya?,dan kemudian disusun paralel berapa nilai totalnya?

Diketahui:

R1 = 20 ohm
R2 = 30 ohm
R3 = 40 ohm
R4 = 50 ohm
R5 = 60 ohm

Ditanyakan:

Rs = … ohm?
Rp = … ohm?

Penyelesaian:

Rangkaian Seri

Rs = R1 + R2 + R3 +R4 + R5

= 20 + 30 + 40 + 50 + 60

= 200 ohm

Rangkaian paralel

$frac{1}{Rp} = frac{1}{R1} + frac{1}{R2} + frac{1}{R3} + frac{1}{R4} + frac{1}{R5}$

$frac{1}{Rp} = frac{1}{20} + frac{1}{30} + frac{1}{40} + frac{1}{50} + frac{1}{60}$

$frac{1}{Rp} = frac{6 + 4 + 3 + 24 + 2}{120}$

$frac{1}{Rp} = frac{39}{120}$

$Rp = frac{120}{39}$

$Rp = 3.07$

$Rp≈ 3 : ohm$