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ECT 125 Help Bcome Exceptional/ snaptutorial.com
ECT 125 Week 1 Homework  
Homework Assignment Chapter 10 2.) Calculate the
value ofvLdeveloped across a 4.7 H coil when the
instantaneous rate of change in component current
equals 1.5 A/s. 4.) Calculate the value
ofvLdeveloped across a 470 µH coil when the
instantaneous rate of change in component current
equals 2 mA/µs. 6.) Calculate the value of the
air-core inductor shown
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ECT 125 Week 1 iLab 1  
ECT 125 ECT\125 ECT 125 Week 1 iLab 1  
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ECT 125 Week 1 iLab 2  
ECT 125 ECT\125 ECT 125 Week 1 iLab 2
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ECT 125 Week 1 Quiz  
1. (TCO 1) Calculate the time constant and how
long will it take the capacitor in the following
circuit to become fully charged   2. (TCO 2)
Current . Transfer this current to the polar
notation.   3. (TCO 1) How long does it take a
capacitor to fully discharge in an RC
circuit?   4. (TCO 3) Calculate current (I) for
the circuit shown.
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ECT 125 Week 2 Homework    
Chapter 9.   2. Calculate the period of the
waveform shown in Figure 9.45   4. Calculate the
period of the waveform shown in Figure 9.46b   6.
Calculate the frequency of the waveform shown in
Figure 9.45.
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ECT 125 Week 2 iLab Triangles and the Pythagorean
Theorem
ECT 125 ECT\125 ECT 125 Week 2 iLab Triangles
and the Pythagorean Theoremwn in Figure 9.45.
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ECT 125 Week 3 Homework  
Calculate total impedance (ZT) and voltage values
(VR, VL, VC) for the circuit shown below where
the voltage source values are v 4V, f 800
Hz.  
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ECT 125 Week 3 iLab 1 Amplitude and Time  
iLab Steps Part I Amplitude Measurement 1.Constru
ct the circuit shown below on your
breadboard. 2.Set the function generation to
provide a 0.25 V RMS amplitude sine wave. Measure
the amplitude of the wave with the DMM and
oscilloscope. Record your measurements in Table
1.0 3.Repeat your measurements for each of the
amplitudes on the function generator.
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ECT 125 Week 3 iLab 2 Inductor Phase Shift  
Inductor Phase Shift iLab Steps Part I Phase
Shift Measurement 1.Construct the circuit shown
below on your breadboard. 2.Set the function
generation to provide a 1 VRMS amplitude sine
wave at 500 Hz. Measure the inductor voltage and
the phase shift between the source and inductor
voltage. Part II Time and Voltage Measurement
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ECT 125 Week 3 iLab 3 Phase Shift and Voltage  
ECT 125 ECT/125 ECT 125 Week 3 iLab 3 Phase
Shift and Voltage  
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ECT 125 Week 4 Homework  
Chapter 11, Page 349-350, problems 20, 22, 24,
26, 30 and 32 20. A parallel RL circuit has
values of IL 240mA and IR 180mA. Calculate the
magnitude and phase angle of the circuit
current. 22. Calculate the total impedance for
the circuit shown in Figure 11.38b. 24.
Calculate the magnitude and phase angle of the
circuit impedance shown in Figure 11.39b.
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ECT 125 Week 4 iLab 1  
iLab Steps Part I Power Ratings Step 1 Power
Rating Observation and Notation 1.Locate the
safety sticker on the equipment in the
laboratory. Examine the power rating of the
equipment. Complete the table below for the
equipment listed below as well as any other
equipment in the room. 2.Assuming the equipment
is connected to standard 120 VRMSwall outlets,
list the maximum current for each device.
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ECT 125 Week 4 iLab 2  
ECT 125 ECT/125 ECT 125 Week 4 iLab 2
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ECT 125 Week 4 iLab 3  
ECT 125 ECT/125 ECT 125 Week 4 iLab 3  
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ECT 125 Week 5 Homework  
Chapter 11 34. Calculate the current and voltage
values for the circuit shown in Figure
11.43b. Chapter 13 34. Calculate the current and
voltage values for the circuit shown in Figure
13.41b. Chapter 14 32. Calculate the impedance,
current and voltage values for the circuit shown
in Figure 14.50b. 38. Calculate the impedance,
current and voltage values for the circuit shown
in Figure 14.51b.
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ECT 125 Week 5 iLab 1  
iLab Steps Part IInductor in Series with
Parallel Combination of Capacitor and Resistor
1.Construct the series-parallel circuit shown on
your breadboard. 2.Determine the total circuit
impedance (including phase) for the circuit.ure
14.51b.
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ECT 125 Week 5 iLab 2  
iLab Steps Part ICapacitor in Series with
Parallel Combination of Inductor and
Resistor 1.Construct the series-parallel circuit
shown on your breadboard. 2.Determine the total
circuit impedance (including phase) for the
circuit. 3.Determine the total circuit current
(including phase) for the circuit.
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ECT 125 Week 5 iLab 3  
Series-Parallel Circuits III Lab is due Week
5 Scenario/Summary This lab is one exercise as
follows This lab entails constructing a
series-parallel circuit (series resistor and
inductor with parallel resistor and capacitor)
and measuring and observing circuit properties.
Questions to answer are embedded in the procedure.
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ECT 125 Week 6 Homework  
Chapter 14, Page 445, problems 16 and 18
Chapter 15, Pages 487488, problems 2, 4, 6, 8,
20, 22, 24, 26, 28, 30, 32, 34, 36, and 38
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ECT 125 Week 6 iLab 1  
ECT 125 ECT/125 ECT 125 Week 6 iLab 1
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ECT 125 Week 6 iLab 2
 iLab Steps Part I RC Low and High Pass
Filters 1.Construct the circuit shown below on
the breadboard. 2.Vary the frequency from minimum
to maximum frequencies and observe the input and
output waveforms on the oscilloscope. What
happened to the phase of the capacitor voltage
when the frequency was changed? 3.Measure the
output voltage and phase for each of the
frequencies shown below. Make sure to keep the
amplitude a 1 V for each of your measurements.
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ECT 125 Week 6 iLab 3  
iLab Steps Part I Bandpass or Notch? 1.Construct
the circuit shown below on the breadboard. 2.Use
the techniques described in the lecture to
predict which type of filter the circuit above
will be. Part II Bandpass or Notch? 1.Construct
the circuit shown below on the breadboard. 2.Use
the techniques described in the lecture to
predict which type of filter the circuit above
will be.
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ECT 125 Week 6 Quiz  
1. (TCO 5) If Va 2V, what is Vout?   2. (TCO 3)
If Vin 2V, and Rload 1k ohm, what is the
current through Rload?   3. (TCO 4) If an audio
amplifier integrated circuit uses a dual power
supply of /- 30V for the power supply, will
there be a capacitor on the output of the audio
amp? Why or why not?   4. (TCO 7) Positive
feedback causes ______.  
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ECT 125 Week 7 Homework  
ECT 125 HW7 -- 1 August 19, 2014 NAME 1. A
transformer with a 250mA AC primary current and a
41 turns ratio has a secondary current of? 1 A
250 mA 4 A 400 mA None of the above 2. A
transformer that has 1500 windings around the
core for the primary and 250 secondary windings
will have a turns ratio of ___ to 1.
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ECT 125 Week 7 iLab 1    
Step-down Transformers Lab is due Week
7 Scenario/Summary This lab is one exercise as
follows This lab entails constructing a
transformer circuit and measuring and observing
circuit properties. Questions to answer are
embedded in the procedure. All parts of the lab
can be accomplished on a physical breadboard or
in MultiSim. Deliverables Questions associated
with each part of the lab.
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ECT 125 Week 7 iLab 1  
ECT 125 ECT\125 ECT 125 Week 7 iLab 1art of the
lab.  
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ECT 125 Week 7 iLab 2  
iLab Steps Exercise Step-up Transformer
Circuits 1.Construct the circuit shown below on
the breadboard. 2.Given the transformer turns
ratio by your Instructor calculate the expected
secondary and primary voltage and currents.
(note Source voltage will need to be increased
with the transformer reversed to yield the
desired 1 V. Measure primary voltage and increase
source until 1 V is reached.)
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ECT 125 Week 7 -iLab 2  
ECT 125 ECT\125 ECT 125 Week 7 iLab 2  
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ECT 125 Week 7 iLab 3  
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ECT 125 Week -7- iLab 3  
ECT 125 ECT\125 ECT 125 Week 7 iLab 3
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