R1 = 2 ohm - Universityku

R2 = 6 ohm
R3 = 12 ohm
R4 = 4 ohm
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R1 = 2 ohm

R1 = 2 ohm

1/Rp = 1/R1 + 1/R2 + 1/R3 + 1/R4
1/Rp = 1/2 + 1/6 + 1/12 + 1/4
1/Rp = 6/12 + 2/12 + 1/12 + 3/12
1/Rp = 12/12

Rp = 1 Ω

$frac{1}{r} = frac{1}{r1} + frac{1}{r2} + frac{1}{r3} + frac{1}{r4} \ frac{1}{r} = frac{1}{2} + frac{1}{6} + frac{1}{12} + frac{1}{4} \ frac{1}{r} = frac{6}{12} + frac{2}{12} + frac{1}{12} + frac{3}{12} = frac{12}{12} = 1 \ jadi : rp = 1 : ohm$
Demikian semoga bermanfaat ya!!