Question 1
Figure 1 shows a circuit consisting of THREE (3) voltage sources and FIVE (5) resistors.
Calculate the amount of current that flows through R4 (3 Ω) in Ampere (A) using Mesh Analysis.
Proof your answer in question 1 (a) using Nodal Analysis.
Question 2
Figure 2 shows a circuit that contains ONE (1) voltage source, FOUR (4) resistors and FOUR (4) inductors.
Determine the total current IT for this circuit in polar form.
Determine the phase angle of IT lags the Vs.
QUESTION 3
Figure 3 shows a Y-connected source driving a Δ-connected load. The load is a balanced load ( Za=Zb=Zc= 15 + j20 Ω).
Determine phase voltage Vθb and Vθc in polar form.
Determine each line voltage (VL1, VL2, and VL3) in polar form.
Determine each load voltage (VZa, VZb, and VZc) in polar form.
Determine load current (IZa, IZb, and IZc) in polar form.
Determine the total magnitude of true load power (PL(tot)).
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