V Fri 8:54 PM IE History Bookmarks Window Help odugon.wileyplus.com Assignment P

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V Fri 8:54 PM IE History Bookmarks Window Help odugon.wileyplus.com Assignment PRINTER VERSION BACK NEXT MESSAGEMY INSTRUCTOR FULL SCREEN Your answer is partially correct. Try again. Part a of the drawing shows a resistor and a charged capacitor wired in series. When the switch is closed, the capacitor discharges as charge moves from one plate to the other. Part b shows the amount q of charge remaining on each plate of the capacitor as a function of time. In part c of the drawing, the switch has been removed and an ac generator has been inserted into the ciroult. The circuit elements in the drawing have the following values: R 18.0 n, vrms 30.0 v for the generator, and f 39s Hz for the generator. The time constant for the circuit in part a is r 3x10 4 s, what is the rms current in the circuit in part c? tive the tolerance is +/-2% click if you would like to show work for this question Open Show Work Division of 2ohn Wiley Sons, Inc. 2ooo-2014, John w ey 6 sons, Inc, All Rights Reserved

Explanation / Answer

Time Constant

T=L/R

=>L=T*R =(3*10-4)*18=5.4*10-3 H

Inductive reactance

XL=2pi*f*L=2pi*395*5.4*10-3=13.4 ohms

Impedacne

Z=sqrt[R2+XL2]=sqrt[182+13.42]=22.44 ohms

Rms Current

Irms=Vrms/Z=30/22.44

Irms=1.3368 A

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