Download Chapter 25 Homework - Handout

Chapter 25 Homework
Fill in the following tables. Be sure to show your work. Staple work to this handout.
C
L
fO
1
10nF
3mH
2
16pF
55mH
3
0.08uF
1000Hz
4
5nF
50kHz
5
4H
60Hz
6
22mH
1MHz
7
8
9
C
L
fo
0.01uF 10mH
10pF 100uF
22mH 100kHz
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XL
XC
RS
20
50
Q
25
BW FC1
FC2
10. In a series RLC circuit operating at resonant frequency:
- what 2 parameters are equal to each other (in opposite directions)?
- as a result of this, does the total impedance go up, down or stay the same at fo?
- will the circuit be an RL, RC, or purely L, C, or R circuit?
- what will the circuit phase angle equal?
- what is the power factor of a series resonant circuit?
- what would happen to the circuit if the resistor was replaced by a short?
11. In a parallel LC circuit operating at resonant frequency, XL and XC are equal to each other. Since they are in parallel, what is their total combined resistance?
Show your work
12. As a result of the last question, ideally what is the current coming out of the voltage source?
13. What causes a practical parallel LC circuit to not be ideal, (meaning there is a little bit of current)?
14. T or F In a parallel RLC circuit, the voltage angle across all 3 components 0°.
15. As a result of the previous question being true, in a parallel RLC circuit, using ELI and ICE, what is the current angle across:
R?_______
L?________ C? _______
16. In a resonant AC series RLC circuit, VCL (the voltage across the capacitor and inductor combined) is _________V
17. T or F In a resonant AC series RLC circuit, the total impedance ZT = R + XC + XL = 0Ω