1. (6 pts) Given the following circuit, use source transformations to find the Norton equivalent circuit with respect to the terminals a and b. -j4Q 8Ω 20° A 20/90° V ww 12 Ω a Ob 2. (8 pts) Use source transformations to find the Thèvenin equivalent of the following circuit with respect to terminals a and b. -j25 Ω HH 350° V + 10 Ω w 4Ω 20 Ω 110 Ω moa 50° A ли j20 3. (12 pts.) Find and sketch the Norton equivalent circuit with respect to terminals a and b. 50 Ω www 110 Ω a 4000° V + 60 Ω + 2VX b