Ok i need someone who knows about nortons and thevenins also maximum power

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.

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** 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