1. The problem statement, all variables and given/known data Use Norton's Equivalent Circuit to find current I through 15ohm resistor. 2. Relevant equations norton's theorem states that any two terminal network that includes many sources and resistors can be converted into an equivalent two terminal network with one current source and a parallel resistor 3. The attempt at a solution i have tried to simplify the circuit using source conversion but have failed. do i need to regard the 10 ohm and 5 ohm as in series and 12 ohm and 16 ohm in series? then use the resulting resistances in parallel to the 200v source? any help on how to start would be great. thank you!