Section A: DC circuits and DC power transfer (3 questions, 20 marks total) 1) (10 marks) Calculate voltages, currents and powers as follows for the dc circuit in Fig. 1. a) Calculate using mesh analysis, the currents circulating in each of the four meshes. Label these currents i1, i2, i3 and i4. What is the value of the current ix? Label the circuit diagram appropriately. b) Calculate the three node voltages relating to the top nodes. Label these voltages in order from the left va, vb and vc. Briefly explain how you calculated these voltages. c) Calculate the power absorbed or produced by the dependent source. Is this power supplied or absorbed by the dependent source? Explain your answer. Fig. 1
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We will define i1 as the current in the leftmost mesh, i2 as the current in the upper middle mesh, i3 as the current in the lower middle mesh, and i4 as the current in the rightmost mesh. The current ix is the current through the 5 Ī© resistor. Show moreā¦
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