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Question 10 A 3-terminal component in an electrical network can be represented by either of the following oriented graphs. A A B B с 2 a (a) Write down the voltages va and up of the second graph in terms of the voltages v₁ and 2 of the first graph. (b) Write down the currents i, and i, of the second graph in terms of the currents ₁ and 2 of the first graph. (c) Draw a graphical representation of a 4-terminal component. [2] [2] [1]