Equivalent Resistance and Capacitance
| Resistors | Capacitors | |
| Series | Increases | Decreases |
| Parallel | Decreases | Increases |
Resistors in series increase the total equivalent resistance of the circuit:
R_{Tseries} = R_1+R_2+R_3+...+R_NResistors in parallel decrease the total equivalent resistance of the circuit:
R_{Tparallel} = \frac{1}{(\frac{1}{R_1} + \frac{1}{R_2} + \frac{1}{R_3}+...+\frac{1}{R_N})} = (\frac{1}{R_1} + \frac{1}{R_2} + \frac{1}{R_3}+...+\frac{1}{R_N})^{-1}Capacitors in series decrease the total equivalent resistance of the circuit:
C_{Tseries} = \frac{1}{(\frac{1}{C_1} + \frac{1}{C_2} + \frac{1}{C_3}+...+\frac{1}{C_N})} = (\frac{1}{C_1} + \frac{1}{C_2} + \frac{1}{C_3}+...+\frac{1}{C_N})^{-1}Capacitors in parallel increase the total equivalent resistance of the circuit:
C_{Tseries} = C_1+C_2+C_3+...+C_N