Opór zastępczy R oporników R1 i R2 połączonych równolegle opisuje wzór:1/R=1/R1+1/R2. Wyznacz z tego wzoru opór R1
1/R=1/R1+1/R2
1/R - 1/R2 = 1/R1
1/R1 = R2 / (R *R2) - R / (R*R2)
1/R1 = (R2 - R) / (R * R2)
R1 * (R2 - R) = R * R2
R1 = (R * R2)/ (R2 - R1)
1/R=1/R1+1/R21/R - 1/R2 = 1/R11/R1 = R2 / (R *R2) - R / (R*R2)1/R1 = (R2 - R) / (R * R2)R1 * (R2 - R) = R * R2R1 = (R * R2)/ (R2 - R1)
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1/R=1/R1+1/R2
1/R - 1/R2 = 1/R1
1/R1 = R2 / (R *R2) - R / (R*R2)
1/R1 = (R2 - R) / (R * R2)
R1 * (R2 - R) = R * R2
R1 = (R * R2)/ (R2 - R1)
1/R=1/R1+1/R2
1/R - 1/R2 = 1/R1
1/R1 = R2 / (R *R2) - R / (R*R2)
1/R1 = (R2 - R) / (R * R2)
R1 * (R2 - R) = R * R2
R1 = (R * R2)/ (R2 - R1)