# HW19soln - Physics 21 Fall 2007 Solution to HW-19 31-9(A...

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Unformatted text preview: Physics 21 Fall 2007 Solution to HW-19 31-9 (A) What is the reactance of an inductor with an inductance of 3.30 H at a frequency of 83.0 Hz? (B) What is the inductance of an inductor whose reactance is 13.0 Ω at a frequency of 83.0 Hz? (C) What is the reactance of a capacitor with a capacitance of 4.22×10-6 F at a frequency of 83.0 Hz? (D) What is the capacitance of a capacitor whose reactance is 110 Ω at a frequency of 83.0 Hz? 31.21 Analyzing an LRC Circuit You have a 194 Ω resistor, a 0.395 H inductor, a 4.97 μ F capacitor, and a variable-frequency ac source with an amplitude of 3.04 V. You connect all four elements together to form a series circuit. (A) At what frequency will the current in the circuit be greatest? (B) What will be the current amplitude at this frequency? (C) What will be the current amplitude at an angular frequency of 396 rad/s? (D) At this frequency, will the source voltage lead or lag the current?...
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## This note was uploaded on 02/29/2008 for the course PHYSICS 21 taught by Professor Hickman during the Spring '08 term at Lehigh University .

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