Discussion 1- Explain why the phasor and the impedance have the same angle. 2- At what condition the following results obtained? a- Phase angle equal zero b- The applied voltage leads the current by 90°. c- The average power equal to zero. 3- In general, how would the phasor diagram of Figure 4.1 change if the frequency was raised? 4- In general, how would the phasor diagram of Figure 4.2 change if the frequency was lowered? Series RL impedance angle, 6z tan'XR (a) (b) Fig.4-1 (a) Series circuit diagram, (b) VI phasor diagram Fig.4-2 (a) Parallel circuit diagram, (b) VI phasor diagram

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Discussion
1- Explain why the phasor and the impedance have the same angle.
2- At what condition the following results obtained?
a- Phase angle equal zero
b- The applied voltage leads the current by 90°.
c- The average power equal to zero.
3- In general, how would the phasor diagram of Figure 4.1 change if the
frequency was raised?
4- In general, how would the phasor diagram of Figure 4.2 change if the
frequency was lowered?
Series RL impedance angle, 6z tanX,R
V- 10 Vp
I-1A
Va- v
(b)
Fig.4-1 (a) Series circuit diagram, (b) VI phasor diagram
(a)
Fig.4-2 (a) Parallel circuit diagram, (b) VI phasor diagram
Transcribed Image Text:Discussion 1- Explain why the phasor and the impedance have the same angle. 2- At what condition the following results obtained? a- Phase angle equal zero b- The applied voltage leads the current by 90°. c- The average power equal to zero. 3- In general, how would the phasor diagram of Figure 4.1 change if the frequency was raised? 4- In general, how would the phasor diagram of Figure 4.2 change if the frequency was lowered? Series RL impedance angle, 6z tanX,R V- 10 Vp I-1A Va- v (b) Fig.4-1 (a) Series circuit diagram, (b) VI phasor diagram (a) Fig.4-2 (a) Parallel circuit diagram, (b) VI phasor diagram
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