Vol. IV — Electronics · Tool
Two resistors in parallel share a source current. More current takes the easier path — the smaller resistance. Change Iin, R1, and R2 — the branch currents update as you type.
R1 and R2 sit side by side across the same voltage. The source current Iin splits between them in inverse proportion to resistance: I1 = Iin × R2 / (R1 + R2), and I2 = Iin × R1 / (R1 + R2). Equal resistors take equal shares.
A smaller branch resistance draws more current. Req of the pair is 1 / (1/R1 + 1/R2), and the voltage across both is V = Iin × Req. Power in each branch is I²R for that branch.
Compare with the series Voltage divider, combine more parts on Series & parallel, or pick bands on Resistor codes.