PHY 204 FINAL EXAM|QUESTIONS & ANSWERS VERIFIED
SOLUTIONS 100%|GRADE A+|LATEST 2024/2025
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 - ✔✔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 - ✔✔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 - ✔✔d) 7.07 mA
What is the frequency of the EMF (or the current) in Figure 1? - ✔✔f = 1/T = 1000
Hz
A capacitor temporarily stores energy in
a) an electric field
b) a magnetic field
c) heat
d) chemical form - ✔✔a) an electric field
,An inductor temporarily stores energy in
a) an electric field
b) a magnetic field
c) heat
d) chemical form - ✔✔b) a magnetic field
A capacitor can to filter out
a) high voltages
b) low voltages
c) high frequencies
d) low frequencies - ✔✔d) low frequencies
An inductor can filter out
a) high voltages
b) low voltages
c) high frequencies
d) low frequencies - ✔✔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 - ✔✔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
d) a complex number
e) a matrix - ✔✔a) a positive real number
The impedance is most generally __.
a) a positive real number
b) a real number that is not necessarily positive
c) a positive integer
d) a complex number
e) a matrix - ✔✔d) a complex number
In the RLC experiment, the resonant frequency was determined
a) almost entirely or entirely by R and C
b) almost entirely or entirely by R and L
c) almost entirely or entirely by C and L
d) by R, L, and C, with all three being important - ✔✔c) almost entirely or entirely
by C and L
In order to vary the sharpness of the RLC resonance, you varied
a) the resistor
b) the capacitor
SOLUTIONS 100%|GRADE A+|LATEST 2024/2025
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 - ✔✔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 - ✔✔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 - ✔✔d) 7.07 mA
What is the frequency of the EMF (or the current) in Figure 1? - ✔✔f = 1/T = 1000
Hz
A capacitor temporarily stores energy in
a) an electric field
b) a magnetic field
c) heat
d) chemical form - ✔✔a) an electric field
,An inductor temporarily stores energy in
a) an electric field
b) a magnetic field
c) heat
d) chemical form - ✔✔b) a magnetic field
A capacitor can to filter out
a) high voltages
b) low voltages
c) high frequencies
d) low frequencies - ✔✔d) low frequencies
An inductor can filter out
a) high voltages
b) low voltages
c) high frequencies
d) low frequencies - ✔✔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 - ✔✔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
d) a complex number
e) a matrix - ✔✔a) a positive real number
The impedance is most generally __.
a) a positive real number
b) a real number that is not necessarily positive
c) a positive integer
d) a complex number
e) a matrix - ✔✔d) a complex number
In the RLC experiment, the resonant frequency was determined
a) almost entirely or entirely by R and C
b) almost entirely or entirely by R and L
c) almost entirely or entirely by C and L
d) by R, L, and C, with all three being important - ✔✔c) almost entirely or entirely
by C and L
In order to vary the sharpness of the RLC resonance, you varied
a) the resistor
b) the capacitor
