Series & Parallel Resistance
When combining resistors in a circuit, the total resistance depends on whether they're wired in series or parallel. In series, resistances simply add up (R_total = R1 + R2 + ...). In parallel, the total resistance is lower than any individual resistor: 1/R_total = 1/R1 + 1/R2 + ... This calculator handles both configurations and mixed networks.
Understanding resistance combinations is essential for electronics design, from selecting the right resistor value to protecting components from excess current. The tool also computes total current and power dissipated when supply voltage is entered. All operations are client-side and instant.