# HW25Sol - Platt, David Homework 25 Due: Nov 7 2005, 4:00 am...

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Platt, David – Homework 25 – Due: Nov 7 2005, 4:00 am – Inst: Ken Shih 1 This print-out should have 9 questions. Multiple-choice questions may continue on the next column or page – fnd all choices beFore answering. The due time is Central time. 001 (part 1 oF 3) 10 points Consider the Following circuit. AFter being at the position “ a ” For a long time, the switch is moved From “ a ” to “ b ”. The usual LC circuit oscillations occur. L R C E S b a The maximum current will be given by 1. I max = E r L C . 2. I max = E R r L C . 3. I max = E r C L . correct 4. I max = E L C . 5. I max = E R r C L . 6. I max = E r 1 L C . 7. I max = E R . 8. I max = E R L C . Explanation: 1 2 L I 2 max = 1 2 C q 2 max = 1 2 C E 2 I max = r C L E . 002 (part 2 oF 3) 10 points Select an item below which has the dimension oF time. 1. 1 R C 2. R C 3. C R 4. R C correct Explanation: Let the square bracket be used to denote the dimension oF the enclosed quantity. One may deduce the dimension oF the quantity in- volving R and C From the respective potential di±erences. Here we have [ I R ] = h q C i , or [ R C ] = h q I i = T . 003 (part 3 oF 3) 10 points Select an item below which has the dimension oF time. 1.

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## This note was uploaded on 07/26/2009 for the course PHY 303L taught by Professor Turner during the Fall '08 term at University of Texas.

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HW25Sol - Platt, David Homework 25 Due: Nov 7 2005, 4:00 am...

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