Figure 1 shows a circuit consisting of THREE (3) voltage sources and FIVE (5) resistors: Electrical Technology Assignment, UKM, Malaysia

School

Universiti Kebangsaan Malaysia (UKM)

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Assignment Type

Individual Assignment

Subject

Electrical Technology

Uploaded by Malaysia Assignment Help

Date

08/08/2023

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 I_T for this circuit in polar form.
Determine the phase angle of I_T lags the V_s.

QUESTION 3

Figure 3 shows a Y-connected source driving a Δ-connected load. The load is a balanced load ( Z_a=Z_b=Z_c= 15 + j20 Ω).

Determine phase voltage V_θb and V_θc in polar form.
Determine each line voltage (V_L1, V_L2, and V_L3) in polar form.
Determine each load voltage (V_Za, V_Zb, and V_Zc) in polar form.
Determine load current (I_Za, I_Zb, and I_Zc) in polar form.
Determine the total magnitude of true load power (P_L(tot)).

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