# SOLUTION: The combined resistance of two resistors r1 and r2 in a parallel circuit is given by the formula: Rt = 1 ------- 1 1 --- + --- R1 R2 Thank you for

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 Question 65584: The combined resistance of two resistors r1 and r2 in a parallel circuit is given by the formula: Rt = 1 ------- 1 1 --- + --- R1 R2 Thank you for the helpFound 2 solutions by Nate, checkley71:Answer by Nate(3500)   (Show Source): You can put this solution on YOUR website!Simplify? .... Answer by checkley71(8403)   (Show Source): You can put this solution on YOUR website!R=1/[(1/R1)+(1/R2)] SO IF THE TWO RESISTERS ARE 50 & 100 OHMS THEN R=1/[(1/50)+1/100)] R=1/[(2+1)/100] R=1/(3/100) R=1*(100/3) R=100/3 R=33 1/3 OHMS. ------------------------------------------ IF BOTH RESISTERS ARE 500 OHMS THEN R=1/[(1/500)+(1/500)] R=1/(2/500) R=1*500/2 R=500/2 R=250 OHMS. ################################################## MERRY CHRISTMAS