Capacitive Load - Physics 202 Thursday, Apirl 22, 1999...

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Thursday, Apirl 22, 1999 Announcements: 1. AC and RLC Circuits will be covered on April 22 and 27 2. Suggested HW problems that will not be collected : Chapter 33: 47, 51, 53, 65, 85, 87 The answers will be posted on April 29 3. Maxwell's equations will be covered in lecture on April 29. Expect 1 to 2 qualitative questions on the final 4.Recitation Instructors will annouce "normilazation" policy for recitation grade. 5. "Normilazation" of lab grade will be announced next Tuesday. 6. More information on final will be announced in Tuesday and Thursday's lecture. Lecture notes: Capacitive Load ξ = ξ max sin ϖ t v c = V c sin ϖ t o q c = cv c = cV c sin ϖ t o i c = dq c /dt = ϖ cV c cos ϖ t See Figure 33-9b Note that cos θ = sin ( θ +90) o Therefore: i c = ϖ cV c cos ϖ t = ϖ cV c sin ( ϖ t + 90 o ) o v c = V c sin ϖ t o Therefore, i c leads v c by 90 o or π /2 radians. They are out of phase by 90 o . o
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This note was uploaded on 02/21/2008 for the course PHYS 212 taught by Professor Mahlon,gregoryda during the Spring '07 term at Pennsylvania State University, University Park.

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Capacitive Load - Physics 202 Thursday, Apirl 22, 1999...

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