HW26 - resonance. Answer in units oF V. 006 (part 1 oF 1)...

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Platt, David – Homework 26 – Due: Nov 9 2005, 4:00 am – Inst: Ken Shih 1 This print-out should have 8 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 An e±ective AC voltage oF 145 V at 60 Hz is applied to an RLC circuit with 27 . 4 mH inductor, 0 . 52 μ ² capacitor, and 45 Ω resistor in series. 27 . 4 mH 45 Ω 145 V S 0 . 52 μ ² I What is the e±ective current? Answer in units oF A. 002 (part 2 oF 3) 10 points What is the power Factor oF the circuit? 003 (part 3 oF 3) 10 points What is the power consumed in the circuit? Answer in units oF W. Your answer must be within ± 2%. 004 (part 1 oF 2) 10 points A 0 . 236 H inductor is connected to a capacitor and a 15 . 2 Ω resistor along with a 77 . 5 Hz, 28 . 4 V generator. To what value would the capacitor have to be adjusted to produce resonance? Answer in units oF μ ². 005 (part 2 oF 2) 10 points ²ind the voltage drop across the resistor at
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Unformatted text preview: resonance. Answer in units oF V. 006 (part 1 oF 1) 10 points A 17 Ω resistor is connected in series with a 281 mH inductor and a 1 . 5 μ ² capac-itor. The applied voltage has the Form V = V sin(2 πf t ), with initial voltage 282 V and Frequency 3821 Hz. ²ind the e±ective voltage V across the ca-pacitor. Answer in units oF V. 007 (part 1 oF 1) 10 points What value oF inductance should be used in series with a capacitor oF 2 . 1 p² to Form an os-cillating circuit that will radiate a wavelength oF 4 . 2 m? Answer in units oF μ H. 008 (part 1 oF 1) 10 points A model electric train requires 6 . 7522 V to operate. IF the primary coil oF its transFormer has 174 . 461 turns windings, how many windings should the secondary have iF the primary is connected to a 97 . 604 V household circuit? Answer in units oF turns....
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This note was uploaded on 11/28/2010 for the course PHY 56705 taught by Professor Turner during the Spring '10 term at University of Texas.

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