j50 2 -j5 2 50 Ω. (1)5410° A Za Va j100 2. Figure Q1(b) +

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
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PLS ANSWER Q B ONLY

 

j50 2
-j5 2
+
50 2.
1)5 210° A
Za
Va
j100 2
Figure Q1(b)
Transcribed Image Text:j50 2 -j5 2 + 50 2. 1)5 210° A Za Va j100 2 Figure Q1(b)
Q1
(a) Based on electrical DC circuit as depicted in Figure Q1(a),
(i)
Determine the mesh currents I1, I, I3 and I4 by using mesh analysis. Then
calculate the branch current, Ia
(ii)
Calculate the power at 50 V voltage source and determine whether the power is
supplied or absorbed by the voltage source.
4Ω
20V
I2
5Ω
50V
Ia
10V
I3
I4
4A
50 Ω
20 Ω
50
Figure Q1(a)
(b) Figure Q1(b) shows an AC circuit. Given the voltage, Va across the impedance Za is
111.803 2 - 41.57° V.
(i)
Determine the value of impedance Za.
(ii)
Determine the complex power, S, real power, P, reactive power, Q, apparent
power, [S| and power factor of the circuit.
(iii)
Calculate the capacitor value needed to increase the circuit's power factor to
0.85.
HiHEW
Transcribed Image Text:Q1 (a) Based on electrical DC circuit as depicted in Figure Q1(a), (i) Determine the mesh currents I1, I, I3 and I4 by using mesh analysis. Then calculate the branch current, Ia (ii) Calculate the power at 50 V voltage source and determine whether the power is supplied or absorbed by the voltage source. 4Ω 20V I2 5Ω 50V Ia 10V I3 I4 4A 50 Ω 20 Ω 50 Figure Q1(a) (b) Figure Q1(b) shows an AC circuit. Given the voltage, Va across the impedance Za is 111.803 2 - 41.57° V. (i) Determine the value of impedance Za. (ii) Determine the complex power, S, real power, P, reactive power, Q, apparent power, [S| and power factor of the circuit. (iii) Calculate the capacitor value needed to increase the circuit's power factor to 0.85. HiHEW
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