Week 4:
Since the resistance overall would be reduced if there was a short in the secondary, the overall
power of the system would be greater. For example, say a transformer is designed to produce a
total of 10W between both primary and secondary (5V, 2.5
1.
Complete the following chart by adjusting the values of frequency and R1:
Frequency = 100 Hz
Period of VT =0.01s
VR1 =15V
VR2 =45V
Frequency = 1000 Hz Period of VT =0.001s
VR1 =15V
VR2 =45V
Frequency = 10 KHz
Period of VT =0.0001s
VR1 =15V
VR2 =45V
Fre
Unloaded Secondary: V3-4=12V
V4-5=12V
V3-5=12V
V1-2/V3-5=120/12=10
Does the full secondary voltage, V3-5, measure higher than its rated value?
Why? No. Since the turns ratio is 10:1, the secondary is 10 times lower than the primary.
Rl=100 ohm:
Ip=20.87uA
Week 8:
FINAL
For an inductor, the induced voltage, VL always _leads_ the current by 90 degrees
Inductive reactance is measured in
The angle between the generator voltage and its current is the _phase_ angle of
the circuit.
The series voltage drops VR and
Introduction to Alternating Current and Voltage
Calculate the frequency from the following period. Period (T) 4ms 200s 80ms 50ms 1ms Frequency 250 Hz 500 KHz 12.5 Hz 20 Hz 1 KHz
Calculate the period (T) from the following frequency. Frequency 60 Hz 40 Hz
Lab 1: EE115 W1
Grantham University
Date: 11 May 2016
Introduction:
Write one to two paragraphs about the Lab. Explain the following information for this lab:
What are the goals to achieve in the lab? The goal of the lab is to use the Oscilloscope and the
Alternating Voltage and Current
1.
Review the Week 1 Video Lecture 1 Introduction to Virtual Instruments and watch
the following video on Introduction to Virtual Breadboarding In MultiSIM (linked)
o
Week 1 Video Lecture 1 - Introduction to Virtual Instrum
Name: Anita Maricella Gonzalez
GID: G00115397
Lab 1: EE115 W1
Grantham University
Date: 11 May 2016
Introduction:
Write one to two paragraphs about the Lab. Explain the following information for this lab:
What are the goals to achieve in the lab? The goal
Capacitive Reactance
Watch the videos
Week 2 Video Lecture - Capacitive Reactance
Consider the circuit below:
figure 1
For each value of the frequency in the chart below, perform calculations for Ic, Vc and Xc.
Freque
Calculated Ic
ncy
Calculated Vc
XC (F
Inductance
1.
Calculate the inductance of a coil that induces 120V when the current through it
changes at a rate of 5A/s.
L = VL/di/dt = 120V/5A/s = 24 H
2.
Calculate the inductance of a coil that induces 850V when the current through it
changes at a rate
CHAPTER 1
113. Fill in all of the empty cells in Table P113 by performing the indicated conversion as shown in the
row labeled sample.
114. Fill in all of the empty cells in Table P114 by performing the indicated conversion as shown in the
row labeled sam
Transformers
1.
o
Watch the videos
Week 4 Video Lecture Multisim Transformers
Consider the circuit demonstrated in this weeks presentations. With the
turns ratio modified to 20:1, calculate the following values of Vs and Is for the given
values of RL in t
I watched video 2 again and I still cant get my breadboard to work I changed the position of the top
jumper It makes more sense for it to be next to the power rather than above it because of the flow of
the electricity. In the video he puts it above it. I
Week 5 Series and Parallel Inductive Reactance
Consider the series inductive reactive circuit:
Calculate the following: (Express all answers in magnitude/phase angle form)
a.
Zeq
Z eq = R1 + R2 + X L1 + X L2
X= jL
X 1 = j L1 = j [ 2 1000 80 103 ] =j502.4