1. Lecture 08 AC POWER ANALYSIS

2. Ex: Find the average power for each element

3. Circuit in frequency domain

4. REMEMBER..
You may use any method of your choice to solve for current/voltage..
And, you may also apply any formula to find the power..
The right choice will save your time!

5. Calculate Z1

6. Using current divider

7. Calculate P for the source

8. Calculate P for 4 Ω resistor

9. Calculate P for inductor

10. Calculate P for 2 Ω resistor

11. Calculate P for capacitor

12. Ex:

13. FIND:
P and Q absorbed by the load
P and Q absorbed by the line
P and Q supplied by the source

14. Calculate the circuit current

15. (a) The average power and reactive power absorbed by the load

16. (b) The average power and reactive power absorbed by the line

17. (c) The average power and reactive power supplied by the source

18. Ex: Find Io

19. Ex: Find the power factor

20. Ex: Find the power factor

21. Ex:
(a) Find P and Q for each element
(b) Find the pf of the circuit