Series and Parallel Components

[ChrisK]

Resistance

Resistances in series add.

Rt = R1 + R2 + ... Rn


Resistances in parallel are calculated this way.

Rt = 1/[1/R1 + 1/R2 + ... 1/Rn]

For two resistors;

Rt = [R1 * R2]/[R1 + R2]


Inductance

Inductances in series add.

Lt = L1 + L2 + ... Ln


Inductances in parallel are calculated this way.

Lt = 1/[1/L1 + 1/L2 + ... 1/Ln]

For two inductors;

Lt = [L1 * L2]/[L1 + L2]


Capacitance

Capacitors in parallel add.

Ct = C1 + C2 + ... Cn


Capacitors in series are calculated this way.

Ct = 1/[1/C1 + 1/C2 + ... 1/Cn]

For two capacitors;

Ct = [C1 * C2]/[C1 + C2]