Discussion 1- Explain why the phasor and the impedance have the same angle. 2- Compare the result for utilized different frequency in same circuit. 3- Give example to utilize the RLC circuit. 4- In general, how would the phasor diagram of Figure 4.1 change if the frequency was raised? 5- In general, how would the phasor diagram of Figure 4.4 change if the frequency was lowered?

Discussion 1- Explain why the phasor and the impedance have the same angle. 2- Compare the result for utilized different frequency in same circuit. 3- Give example to utilize the RLC circuit. 4- In general, how would the phasor diagram of Figure 4.1 change if the frequency was raised? 5- In general, how would the phasor diagram of Figure 4.4 change if the frequency was lowered?

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter25: Surge, Spike, And Lightning Protection

Section: Chapter Questions

Problem 10RQ: In reference to the load, how are capacitors connected to help prevent voltage spikes and surges?...

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1- Explain why the phasor and the impedance have the same angle. 2- Compare the result for utilized different frequency in same circuit. 3- Give example to utilize the RLC circuit. 4- In general, how would the phasor diagram of Figure 4.1 change if the frequency was raised? 5- In general, how would the phasor diagram of Figure 4.4 change if the frequency was lowered?
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
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, 0z= tanX,!R 90 R-6n (V v-6Vp Vr- 10 Vp v.10 V v-8Vp 1-1A V- I-6 Vv (a) (b) Fig.4-1 (a) Series circuit diagram, (b) VI phasor diagram 4-1.41 A (a) Fig.4-2 (a) Parallel circuit diagram, (b) VI phasor diagram
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