Physics
Resistance in Parallel
Find equivalent resistance when resistors are connected in parallel.
1/Rₚ = 1/R₁ + 1/R₂ + 1/R₃ + …
Formula Explanation
In parallel the voltage across each resistor is the same.
Variables Explained
R₁, R₂… = individual resistances.
Solved Example
Two resistors 4 Ω and 6 Ω in parallel. Equivalent?
1/Rₚ = 1/4 + 1/6 = 5/12 → Rₚ = 12/5 = 2.4 Ω.