Ohms Law - Parallel and series ratios

For a beginner who has no idea of how electricity works, this circuit lets you see some simple ratios changing within Ohm's law as different resistance is applied is series or parallel. Shown also: - The Resistor Tree from the examples - Version of the Voltage Slitter Key starting point is (I = V / R): 1A = 1V / 1Ω There are a number of switches to turn on additional resistors in series as well as adding resistors in parallel to experiment whit the various ratios with 1V being the base vale. What-if to experiment with: - two 1kΩ in series - two 1kΩ in parallel - two 2kΩ in parallel - one 2kΩ - three 1kΩ in series - three 1kΩ in parallel - three 3kΩ in parallel - one 3kΩ - one 1kΩ and one 2kΩ in parallel - two 1kΩ in series & two 1kΩ in parallel -------------------------------------------------- OHM's LAW Voltage = Current x Resistance V = I x R SINGLE I = V / R 1mA = 1V / 1kΩ SERIES CIRCUIT I = VT / RT I = 1V / (1kΩ + 1kΩ + 1kΩ) = 0.333mA or 333uA PARALLEL CIRCUIT I = VT / RT I = 1V / 0.333kΩ = 3mA {RT - resistance total for parallel circuit} (1/RT) = (1/R1) + (1/R2) + (1/R3) (1/RT) = (1/1) + (1/1) + (1/1) = 3 RT = 1/3 = 0.333kΩ Parallel resistor tutorial: https://www.youtube.com/watch?v=WT6wbh39MX4 COMBINED CIRCUIT The parallel part of the circuit is added to the series part of the circuit. I = 1V / (1kΩ + 1kΩ + 0.333kΩ) = 0.429mA or 429uA TERMS A - amps mA - miliamps uA - microamps VT - Voltage Total RT - Resistance Total (for parallel circuits)

published 8 years ago