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• Instructor’s weekly informal sessions:

Tu 3:30-4:20, RAS 213 ; Fri 4-5, RLM 5.104

• Midterm 3: Thursday (4/3), 7-8:45pm, WCH 1.120. Please be at the exam site by 6:50pm.
• This midterm covers HW8, 9 and 10, and qualitative knowledge on EM waves.

Lec. 29 Ch32.

RLC in series driven by an AC emf:

· The loop equation

· Phasor diagram method

· Impedence and the phase angle phi.

· i_max vs the angular frequency: w

Time averaged power consumption:

· rms values: Current, emf

· Resistive element: Average power = i_rmsv_rms

· Inductive and capacitive elements: Average power=0.

Transformer: Example 8

Reminders:

• There is the instructor’s informal session today at the usual time and place (see top of the page).
• Next Monday: Review unit 3
• Wednesday 4/2: EM waves
• Midterm 3: Thursday (4/3), 7-8:45pm, WCH 1.120, please be at the exam site by 6:50pm.