How to Add Resistors in a Parallel Circuit - YouTube
Parallel Resistor Calculator
Calculating resistance in parallel - YouTube
Resistors in series and parallel
Finding resistance of unknown resistors in 2 pairs of parallel circuits - Electrical Engineering Stack Exchange
Parallel resistors (article) | Khan Academy
How to calculate the resistance of a combination circuit which has four resistors with two known values (R4=2, R3 =4) and a voltage of 12? (R1 and R4 part of series, R2,
Resistors in Series and Parallel Formula Derivation - Owlcation