PHYS 204 Final UPDATED ACTUAL Questions and CORRECT Answers
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Course
PHYS 204
Institution
PHYS 204
PHYS 204 Final UPDATED ACTUAL
Questions and CORRECT 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 capaci...
PHYS 204 Final UPDATED ACTUAL
Questions and CORRECT 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 - CORRECT 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 - CORRECT 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 - CORRECT ANSWER- ✔✔d) 7.07 mA
What is the frequency of the EMF (or the current) in Figure 1? - CORRECT ANSWER- ✔✔f
= 1/T = 1000 Hz
A capacitor temporarily stores energy in
a) an electric field
b) a magnetic field
c) heat
d) chemical form - CORRECT ANSWER- ✔✔a) an electric field
An inductor temporarily stores energy in
a) an electric field
b) a magnetic field
,c) heat
d) chemical form - CORRECT ANSWER- ✔✔b) a magnetic field
A capacitor can to filter out
a) high voltages
b) low voltages
c) high frequencies
An inductor can filter out
a) high voltages
b) low voltages
c) high frequencies
d) low frequencies - CORRECT 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 - CORRECT 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
d) a complex number
e) a matrix - CORRECT ANSWER- ✔✔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 - CORRECT ANSWER- ✔✔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 - CORRECT ANSWER- ✔✔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
c) the inductor
d) the input voltage - CORRECT ANSWER- ✔✔a) the resistor
The sharpness of the RLC resonance is also called the
a) Z factor
b) Q factor
c) Ω factor
d) Γ factor - CORRECT ANSWER- ✔✔b) Q factor
In an old-fashioned radio, when you turn the knob to change channels you are really changing
the ____ of an RLC circuit.
a) resistance
b) capacitance
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