If n resistors with R Ω each as resistance are connected in parallel, then the equivalent resistance of the network is:

When the resistances are connected in series, the equivalent resistance is given by The equivalent resistance is greater than the largest resistance in the series circuit  R req = R1+ R2+ R3 ....+ Rn When the resistances are connected in parallel, the equivalent resistance is given by The equivalent resistance is lesser than the smallest resistance in the series circuit Calculation:  1/Rreq =  1/R1 + 1/R2 + ......... 1/Rn If n resistances are in parallel, equivalent resistance will be: Rn =  R/n