UTA PHYS 1442 Lab Final Questions With Complete
Solutions
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 Correct Answers A) 0
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 Correct Answers A) 2800
A RLC circuit resonates at 5000 Hz it has an inductor with a DC
resistance of 65 ohms, a 0.47 F capacitor and a 330 ohm resistor.
What is the expected phase angle between the input voltage and
the current at 2400 Hz? Correct Answers -15.28 degrees
A RLC circuit resonates at 5000 Hz it has an inductor with a DC
resistance of 65 ohms, a 0.47 F capacitor and a 330 ohm resistor.
What is the value of the inductor? Correct Answers 2.2 mH
A RLC circuit resonates at 5000 Hz it has an inductor with a DC
resistance of 65 ohms, a 0.47 F capacitor and a 330 ohm resistor.
What would be the impedance of the circuit at 2400Hz? Correct
Answers 409 ohms
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 Correct Answers B)
1.45 v
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 Correct Answers D)
1.26 V
as split space decreases, what happens? Correct Answers the
number of bright spots decrease and become larger in size and
the dark regions become larger as well.
at resonance the ____ and _____ are in phase. Correct Answers
current and voltage
Current measurements are made with the probes of the
multimeter in (parallel, across, or series) to the device or
component? Correct Answers series
E=change in V/ change in x.------ what is this equation saying?
Correct Answers the electric field is equal to the difference in
the voltages of the two adjacent equipotential lines divided by
the distance between the two lines.
, Electric field lines are ____ equipotential lines
A) tangent to B) perpendicular to C) the same as D) parallel to
Correct Answers B) perpendicular to
equipotential lines and electric field lines are _____ to each
other Correct Answers perpendicular
explain how light reacts when passed through a concave lens?
Correct Answers as the light leaves the lens, the light refracts
away from the normal and the focal point lies behind the lens.
explain how light reacts when passed through a convex lens?
Correct Answers the light passes through the focal point and
refract towards the normal
for a two slit aperture, how do you determine split spacing
Correct Answers m* wavelength\d = y/ sqrt (D^2 + y^2)
D is the distance from the slits to the pattern, d is the separation
between the slits, and y is the distance distance between the
central peak and ordered peak.
for an inductor and resistor, how do you find the time constant?
Correct Answers t=L/R
frequency is the inverse of..... on an oscilloscope? Correct
Answers the period of a waveform
how do you calculate terminal voltage (Vt) Correct Answers
Vt= E - Ir ( r= internal resistance )
Solutions
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 Correct Answers A) 0
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 Correct Answers A) 2800
A RLC circuit resonates at 5000 Hz it has an inductor with a DC
resistance of 65 ohms, a 0.47 F capacitor and a 330 ohm resistor.
What is the expected phase angle between the input voltage and
the current at 2400 Hz? Correct Answers -15.28 degrees
A RLC circuit resonates at 5000 Hz it has an inductor with a DC
resistance of 65 ohms, a 0.47 F capacitor and a 330 ohm resistor.
What is the value of the inductor? Correct Answers 2.2 mH
A RLC circuit resonates at 5000 Hz it has an inductor with a DC
resistance of 65 ohms, a 0.47 F capacitor and a 330 ohm resistor.
What would be the impedance of the circuit at 2400Hz? Correct
Answers 409 ohms
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 Correct Answers B)
1.45 v
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 Correct Answers D)
1.26 V
as split space decreases, what happens? Correct Answers the
number of bright spots decrease and become larger in size and
the dark regions become larger as well.
at resonance the ____ and _____ are in phase. Correct Answers
current and voltage
Current measurements are made with the probes of the
multimeter in (parallel, across, or series) to the device or
component? Correct Answers series
E=change in V/ change in x.------ what is this equation saying?
Correct Answers the electric field is equal to the difference in
the voltages of the two adjacent equipotential lines divided by
the distance between the two lines.
, Electric field lines are ____ equipotential lines
A) tangent to B) perpendicular to C) the same as D) parallel to
Correct Answers B) perpendicular to
equipotential lines and electric field lines are _____ to each
other Correct Answers perpendicular
explain how light reacts when passed through a concave lens?
Correct Answers as the light leaves the lens, the light refracts
away from the normal and the focal point lies behind the lens.
explain how light reacts when passed through a convex lens?
Correct Answers the light passes through the focal point and
refract towards the normal
for a two slit aperture, how do you determine split spacing
Correct Answers m* wavelength\d = y/ sqrt (D^2 + y^2)
D is the distance from the slits to the pattern, d is the separation
between the slits, and y is the distance distance between the
central peak and ordered peak.
for an inductor and resistor, how do you find the time constant?
Correct Answers t=L/R
frequency is the inverse of..... on an oscilloscope? Correct
Answers the period of a waveform
how do you calculate terminal voltage (Vt) Correct Answers
Vt= E - Ir ( r= internal resistance )
