22 Alternating Current.

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Presentation transcript:

22 Alternating Current

What is the phase? Examples: RC & RL circuits

Phasors & Alternating-Current (AC)

Root-mean-square (rms) Example : Average power P = I2R

Resistance and Reactance

Reactance & Phase Low-pass High-pass

Series R-L-C Circuit: Impedance VL VR VC V

Series R-L-C Circuit: Phase VL VR VC V f

Power in AC: Pure Resistor

Power in AC: General Case

Series Resonance: Frequency When XL = XC , Z = Zmin = R, which occurs at (resonance frequency)

Resonance & Tuning 

Summary: Phasor & AC

Summary: Resistance & Reactance

Summary: R-L-C Circuit (series)

Summary: Power in AC

Homework Problems: 3, 8, 10, 16, 21, and 22

P3-Resitance & Reactance

P 7&8 Voltage & Current in C & L

P 10-RLC in Series

P 16-Power in AC

P 21&22-Series Resonance

Schedule (MWF) Wednesday Mar 3 Friday Mar 5 Monday Mar 8 Mar 10 Mar 12 Review Test 2 Lab Demo RC-const Ch19~21 Lab Midterm Labs done so far Lab Induction

Schedule (ThTr) Thursday March 4 Tuesday March 9 March 11 Review T2 Test 2 Lab Demo RC-const Test 2 Ch19~21 Lab Midterm Labs done so far Lab Induction

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