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Thinking about circuits graphically

The questions below are due on Wednesday February 19, 2020; 11:59:00 PM.
 
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Two networks, N1 and N2, are described graphically in terms of their i-v relations, and connected together through a single resistor, as shown below.

1) Thevenin

Determine the Thevenin equivalents of N1 and N2.

As usual, do not subscript when entering expressions. Enter V_1 as V1, V_2 as V2, I_1 as I1, I_2 as I2.

####Network N1

V_{TH}=
R_{TH}=

####Network N2

V_{TH}=
R_{TH}=

2) Norton

Determine the Norton equivalents of N1 and N2.

####Network N1

I_N=
R_N=

####Network N2

I_N=
R_N=

3) Connections

Find the current i_1 that results from the interconnection of N1 and N2.

i_1=

Find the current i_2 that results from the interconnection of N1 and N2.

i_2=