SOLUTION: Rt= r1r2 ---- r1+r2 Rt is the total resistance and R1 and R2 are individual resistors. solve the above equation for R2. Dont put numbers into the equation to solve.

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Question 371983: Rt= r1r2
----
r1+r2
Rt is the total resistance and R1 and R2 are individual resistors. solve the above equation for R2. Dont put numbers into the equation to solve.
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
multiplying by r1+r2 ___ r1Rt + r2Rt = r1r2

subtracting r2Rt ___ r1Rt = r1r2 - r2Rt

factoring ___ r1Rt = r2(r1 - Rt)

dividing by r1-Rt ___ (r1Rt) / (r1 - Rt) = r2