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PHY 204 Final Exam Expected Questions and Answers

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PHY 204 Final Exam Expected Questions and Answers Figure 1 shows both the total current through two components connected in series and also the voltage from the signal generator. This circuit might contain a) two resistors, no capacitors and no inductors b) a resistor and a capacitor c) a res...

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  • November 4, 2024
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KaylinHoffman
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PHY 204 Final Exam Expected Questions

and Answers


Figure 1 shows both the total current through two components connected in series and also the


voltage from the signal generator. This circuit might contain


a) two resistors, no capacitors and no inductors


b) a resistor and a capacitor


c) a resistor and an inductor


d) two inductors, no resistors, and no capacitors


e) two capacitors, no resistors, and no inductors - ANSWER✔✔-b) a resistor and a capacitor


From Figure 1, the magnitude of the total impedance of the circuit is


a) 500 Ω b) 200 Ω c) 5 mΩ d) 2 mΩ - ANSWER✔✔-a) 500 Ω


The RMS current in Figure 1 is about


a) 20.0 mA b) 10.0 mA c) 14.14 mA d) 7.07 mA - ANSWER✔✔-d) 7.07 mA


What is the frequency of the EMF (or the current) in Figure 1? - ANSWER✔✔-f = 1/T = 1000 Hz

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A capacitor temporarily stores energy in


a) an electric field


b) a magnetic field


c) heat


d) chemical form - ANSWER✔✔-a) an electric field


An inductor temporarily stores energy in


a) an electric field


b) a magnetic field


c) heat


d) chemical form - ANSWER✔✔-b) a magnetic field


A capacitor can to filter out


a) high voltages


b) low voltages


c) high frequencies


d) low frequencies - ANSWER✔✔-d) low frequencies



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An inductor can filter out


a) high voltages


b) low voltages


c) high frequencies


d) low frequencies - ANSWER✔✔-c) high frequencies


The AC equivalent of resistance for inductors or capacitors, that examines the ratio of the RMS


voltage to the RMS current, is called


a) defiance


b) tenacity


c) intransigence


d) reactance - ANSWER✔✔-d) reactance


The reactance is most generally __.


a) a positive real number


b) a real number that is not necessarily positive


c) a positive integer



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