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UTA PHYS 1442 Lab Final Questions and
Answers
To measure current using a digital multimeter the probes of the
meter would be placed _________ the component.
A) in parallel with B) in series with C) adjacent to
Ans: B) in series with
A reading of 2.80 is displayed when measuring the resistance of a
resistor. The range setting is set to 20k. What is the
resistance of the resistor?
A) 2800 B) 2.80 C) 5.60 D) 5600
Ans: A) 2800
A waveform displayed on an oscilloscope is measured to have 6.3
vertical divisions and 4.7 horizontal divisions for one
complete cycle. The Volt/div knob is set to 0.2 V/div and the
Time/div knob to 0.5ms/div. Determine the peak to peak
voltage of the waveform.
A) 3.15 V B) 2.35 V C) 0.94 V D) 1.26 V
Ans: D) 1.26 V
Electric field lines are ____ equipotential lines
A) tangent to B) perpendicular to C) the same as D) parallel to
Ans: B) perpendicular to
A charge of 2 C is moved 3 cm along an equipotential surface that
has a value of 4.56V. How much work was
required to move this charge along the surface?
A)0 J B) 0.27 J C) 2.7 J D) 27 J
Ans: A) 0
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The same charge is then moved a distance of 2 cm to another
equipotential line that has a value of 3.21 V. How much
work was required to move this charge?
A) 0 J B) 0.27 J C) 2.7 J D) 27 J
Ans: C) 2.7 J
Three capacitors are connected in series they have values of 22 F,
33 F and 47 F. Determine the equivalent capacitance
for the series circuit.
A) 0.1 F B) 10 F C) 13 F D) 102 F
Ans: B) 10 F
If the capacitors in question U17Q1 are instead connected in
parallel what would be the new equivalen capacitance.
A) 0.1 F B) 10 F C) 13 F D) 102 F
Ans: D) 102 F
You measure the resistance of a normally 1500 ohm resistor and
it measures to be infinite resistance. You
conclude that the resistor is _________
A)open B) shorted C) the meter is broken
Ans: A) open
You have the following three resistors connected in parallel. What
is the equivalent resistance for this
circuit? R1 = 100 , R2 = 50 , and R3 = 250
A) 400 B)2.5x10-3 C)3.4x10-2 D) 29
Ans: D) 29
Kirchoff's voltage rule states that:
A) The algebraic sum of all the resistance in a circuit is zero.
B) The product of current and resistance is the voltage.
C) The algebraic sum of the change in potential in a complete
transversal of a loop in a circuit must be zero.
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D) The algebraic sum of the currents entering a junction equals the
algebraic sum of the currents leaving the
junction.
Ans: C) The algebraic sum of the change in potential in a complete
transversal of a loop in a circuit must be zero
Using three different voltmeters a group of students measured
the same emf source. V1 measured 1.52 v,
V2 measured 1.43 v and V3 measured 1.35 v which voltmeter
draws the most current from the emf source.
A) V1 B) V2 C) V3 D) they all draw the same amount of current
Ans: C) V3
A standard cell with an emf of 1.018 volts when placed in a
potentiometer circuit was found to have an
arbitrary length Lstd of 41.3. An unknown cell is then placed in the
circuit and a decade box set to 450
ohms is in parallel with the unknown cell. The circuit was adjusted
to a null and the arbitrary length of the
unknown cell with this load was found to be Lunk = 58.8. What is
the terminal voltage VT?
A) 0.70 v B) 1.45 v C) 1.42 v D) 0.715 v
Ans: B) 1.45 v
Frequency is calculated by_________ and has units of ________. But
if you don't have, period, its calculated by_______.
Ans: 1/period and hertz, horizontal divisions x time/div knob setting
(microseconds)
When subjected to a sinusoidal voltage, the reactance of a
capacitor
A) decreases as the frequency of the voltage source increases
B) is not affected by the frequency of the voltage source
C) increases as the frequency of the voltage source increases
D) none of these
© 2025 All rights reserved
UTA PHYS 1442 Lab Final Questions and
Answers
To measure current using a digital multimeter the probes of the
meter would be placed _________ the component.
A) in parallel with B) in series with C) adjacent to
Ans: B) in series with
A reading of 2.80 is displayed when measuring the resistance of a
resistor. The range setting is set to 20k. What is the
resistance of the resistor?
A) 2800 B) 2.80 C) 5.60 D) 5600
Ans: A) 2800
A waveform displayed on an oscilloscope is measured to have 6.3
vertical divisions and 4.7 horizontal divisions for one
complete cycle. The Volt/div knob is set to 0.2 V/div and the
Time/div knob to 0.5ms/div. Determine the peak to peak
voltage of the waveform.
A) 3.15 V B) 2.35 V C) 0.94 V D) 1.26 V
Ans: D) 1.26 V
Electric field lines are ____ equipotential lines
A) tangent to B) perpendicular to C) the same as D) parallel to
Ans: B) perpendicular to
A charge of 2 C is moved 3 cm along an equipotential surface that
has a value of 4.56V. How much work was
required to move this charge along the surface?
A)0 J B) 0.27 J C) 2.7 J D) 27 J
Ans: A) 0
© 2025 All rights reserved
, 2 | Page
The same charge is then moved a distance of 2 cm to another
equipotential line that has a value of 3.21 V. How much
work was required to move this charge?
A) 0 J B) 0.27 J C) 2.7 J D) 27 J
Ans: C) 2.7 J
Three capacitors are connected in series they have values of 22 F,
33 F and 47 F. Determine the equivalent capacitance
for the series circuit.
A) 0.1 F B) 10 F C) 13 F D) 102 F
Ans: B) 10 F
If the capacitors in question U17Q1 are instead connected in
parallel what would be the new equivalen capacitance.
A) 0.1 F B) 10 F C) 13 F D) 102 F
Ans: D) 102 F
You measure the resistance of a normally 1500 ohm resistor and
it measures to be infinite resistance. You
conclude that the resistor is _________
A)open B) shorted C) the meter is broken
Ans: A) open
You have the following three resistors connected in parallel. What
is the equivalent resistance for this
circuit? R1 = 100 , R2 = 50 , and R3 = 250
A) 400 B)2.5x10-3 C)3.4x10-2 D) 29
Ans: D) 29
Kirchoff's voltage rule states that:
A) The algebraic sum of all the resistance in a circuit is zero.
B) The product of current and resistance is the voltage.
C) The algebraic sum of the change in potential in a complete
transversal of a loop in a circuit must be zero.
© 2025 All rights reserved
, 3 | Page
D) The algebraic sum of the currents entering a junction equals the
algebraic sum of the currents leaving the
junction.
Ans: C) The algebraic sum of the change in potential in a complete
transversal of a loop in a circuit must be zero
Using three different voltmeters a group of students measured
the same emf source. V1 measured 1.52 v,
V2 measured 1.43 v and V3 measured 1.35 v which voltmeter
draws the most current from the emf source.
A) V1 B) V2 C) V3 D) they all draw the same amount of current
Ans: C) V3
A standard cell with an emf of 1.018 volts when placed in a
potentiometer circuit was found to have an
arbitrary length Lstd of 41.3. An unknown cell is then placed in the
circuit and a decade box set to 450
ohms is in parallel with the unknown cell. The circuit was adjusted
to a null and the arbitrary length of the
unknown cell with this load was found to be Lunk = 58.8. What is
the terminal voltage VT?
A) 0.70 v B) 1.45 v C) 1.42 v D) 0.715 v
Ans: B) 1.45 v
Frequency is calculated by_________ and has units of ________. But
if you don't have, period, its calculated by_______.
Ans: 1/period and hertz, horizontal divisions x time/div knob setting
(microseconds)
When subjected to a sinusoidal voltage, the reactance of a
capacitor
A) decreases as the frequency of the voltage source increases
B) is not affected by the frequency of the voltage source
C) increases as the frequency of the voltage source increases
D) none of these
© 2025 All rights reserved
