ok i got this assignemt today to do for tomorrow i have done the first question but i dont understand the second one can anyone help me out i would love it.
exactly the same circuit,
exactly the same circuit, just diferente values
http://www.allaboutcircuits.com/vol_1/chpt_10/9.html
Just keep in mind that V1 and V2 have opposite values, this meens you RL current will be something like
CurrRL = CurrR1 - CurrR2
depending on the direction you choose for each current ( CurrR1 and CurrR2 ) , CurrRL will always be the sum of the other currents
As for the maximum power transfer, you have maximum power transfer when the RL = Requivalent
I can’t really remember the math on this one, but that is it RL = Requivalent = MaximumPower Transfer
Take a look here
http://www.allaboutcircuits.com/vol_1/chpt_10/12.html
Hope that helped