Lecture_17

# Lecture_17 - AC circuits inductive reactance capacitive...

This preview shows pages 1–8. Sign up to view the full content.

1 AC circuits: inductive reactance, capacitive reactance, impedance and admittance CHM6158C - Lecture 17 Mar 29 Notes from Gibilisco; Teach Yourself Electricity and Electronics, McGraw-Hill, Chapters 13-15 voltage-current profiles of L, C, RL, RC and circuits impedance of RL, RC and RLC circuits

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
2 Inductive reactance (X L ) inductance = property of circuit where change in electric current through the circuit induces an electromotive force that opposes the change in current = …. . Increase AC frequency – what will be the effect? fL X L 28 . 6 = Inductive reactance: Inductance (Henrys = Ω s) Frequency (Hz)
3 Examples inductance = 0.50 H, frequency = 60 Hz, what is X L ? for the same circuit as above, we use a battery with 12 VDC, what is X L ? What are the units of X L ?

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
4 Voltage-current profile Current lags driving (source) voltage For pure inductance circuit For pure resistance circuit Current in phase with driving (source) voltage
5 Inductive reactance and resistance

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
6 Combined inductance and resistance
7 Phase angle Apply Pythagoras to obtain hypotenuse = impedance sin φ =

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 17

Lecture_17 - AC circuits inductive reactance capacitive...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online