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 372104: 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 ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Solve for r2:
Rt =
:
Multiply both sides by (r1+r2)
Rt(r1+r2) = r1*r2
Rt*r1 + Rt*r2 = r1*r2
:
Subtract (Rt*r2)
Rt*r1 = r1*r2 - Rt*r2
:
factor out r2:
Rt*r1 = r2(r1-Rt)
:
Divide both sides by (r1-Rt)
= r2
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