Assume you need to find the total impedance between two spec

Assume you need to find the total impedance between two specific terminals, looking into the open terminals, with all sources zeroed. Which theorem is suggested by these conditions? Norton\'s theorem Thevenin\'s theorem total impedance both A and B

Solution

answer is B

becasue In thevinins theorems the point at which resistance calculated is open circuited whereas in nortons it is short circuited