Problem: Calculate the value of load resistance (Rl) for which maximum transfer occurs.
Attempt: What I know is that for the maximum transfer to occur, the load resistance must be equal to the source resistance, in our case, the equivalent resistance of the resistors in T network.
Maximum transfer results to 50% efficiency, \$n = 0.5 = \frac{Rl}{Rl + Req.} \$. So If I could get the equivalent resistance of the T network, I can plug it in on the formula and get the load resistance. Problem is I don't know what to do next.
Any tip or help will be appreciated or a thorough / step by step explanation would be great for a newbie like me. Thank you.
Best Answer
A little help and not an answer: -
How would you calculate the effective source impedance of this: -
What steps would you go through when both resistors are equal (for instance)?
Looking back into the terminals, and imagining the battery produced 0 volts (still a valid value) what impedance would you see?