Thread Starter i_nour Joined Nov 9, 2015 31 Dec 16, 2015 #1 how do we get (Rth + Rl)^2 + (Xth + Xl)^2 in the denominator ?! isn't (Zth+Zl)^2=(Rth+Rl)^2 + 2j (Rth+Rl)(Xth+Xl) - (Xth+Xl)^2 ?
how do we get (Rth + Rl)^2 + (Xth + Xl)^2 in the denominator ?! isn't (Zth+Zl)^2=(Rth+Rl)^2 + 2j (Rth+Rl)(Xth+Xl) - (Xth+Xl)^2 ?
WBahn Joined Mar 31, 2012 26,398 Dec 16, 2015 #3 The key is to note that Z² is not the same as |Z|² Try taking the magnitude of what you got and you will get their result, since |Z²| = |Z|²
The key is to note that Z² is not the same as |Z|² Try taking the magnitude of what you got and you will get their result, since |Z²| = |Z|²
