HW 31 - benavides (jjb2356) homework 31 Turner (59130) 1...

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Unformatted text preview: benavides (jjb2356) homework 31 Turner (59130) 1 This print-out should have 10 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 10.0 points The current in a light bulb is plotted as a function of angular velocity as shown below. I lightbulb Select the circuit which gives rise to the above plot. 1. R E C L cor- rect 2. R E C L 3. None of these 4. R E C L 5. R E C L Explanation: X C = 1 C and X L = L. Analyze each circuit: R E C L Z RC = radicalBig R 2 + X 2 C = radicalBigg R 2 + 1 ( C ) 2 I R = E radicalbigg R 2 + 1 ( C ) 2 I lightbulb = 1 RC ====================== R E C L Z RL = radicalBig R 2 + X 2 L = radicalBig R 2 + ( L ) 2 I R = E radicalbig R 2 + ( L ) 2 I lightbulb = R L ====================== R E C L benavides (jjb2356) homework 31 Turner (59130) 2 Z = R + 1 radicalBigg parenleftbigg 1 X C- 1 X L parenrightbigg 2 = R + 1 radicalBigg parenleftbigg C- 1 L parenrightbigg 2 I R = E R + 1 radicalBigg parenleftbigg C- 1 L parenrightbigg 2 I lightbulb = 1 LC ====================== R E C L Z = radicalBig R 2 + ( X L- X C ) 2 = radicalBigg R 2 + parenleftbigg L- 1 C parenrightbigg 2 I R = E radicalBigg R 2 + parenleftbigg L- 1 C parenrightbigg 2 I lightbulb = 1 LC 002 10.0 points A circuit containing a capacitor and an in- ductor is shown below. L C b a Select the plot commensurate with the above circuit in which the impedance from a to b is plotted as a function of angular ve- locity ....
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This note was uploaded on 03/26/2012 for the course PHY 303L taught by Professor Turner during the Spring '08 term at University of Texas at Austin.

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HW 31 - benavides (jjb2356) homework 31 Turner (59130) 1...

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