1. (a) Use superposition to find v, in the circuit in Fig.P1(a). ( 5 pts.) \text { Use source transformation to find } v_{0} \text { in the circuit in Fig.P1(b). ( } 5 \text { pts.) } \text { Determine } V_{T H}, R_{T H}, I_{N} \text {, and } R_{N} \text { at terminals 1-2 of the circuit in Fig.P1c. (5 pts.) }

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