What is the effective resistance (in Ω) of two resistors 20 Ω and 30 Ω connected in parallel?
What is the effective resistance (in Ω) of two resistors 20 Ω and 30 Ω connected in parallel? Correct Answer 12
according to rules1/R = 1/R1 + 1/R2 (for parallel)=1/20 + 1/30=12 ohm