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Massachusetts Institute of Technology *
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6.431X
Subject
Electrical Engineering
Date
Apr 3, 2024
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2
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2/19/24, 3
:
10 PM
6.431x Courseware | edX
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MITx+6.431x+1T2024+type@v…&recheck_access=1&show_bookmark=0&show_title=0&view=student_view
Correct (5/5 points)
Problem Set due Mar 1, 2024 06
:
59 EST
Problem 4. Joint PMF
5/5 points (graded)
The joint PMF, , of the random variables and is given by the following table:
1
. Find the value of the constant .
1/28
2
. Find .
14/28
3
. Consider the random variable . Find .
-12/7
4
. Conditioned on the event that , are and independent?
Yes
5
. Find the conditional variance of given that .
8/9
Submit
You have used 4 of 5 attempts
2/19/24, 3
:
10 PM
6.431x Courseware | edX
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hing Sgrn
experthinng.cheggindia.com/Form:Subject test?User Name-3709413000243989335&Number-
ab Search Welcome
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w hp
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el Coune Curcakm
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Note: -
You are attempting question 10 out of 12
The relation between Virtual short and virtual ground in an op-amp is,
a) virtual short is a subset of virtual ground.
b) They are unrelated.
c) virtual ground is a subset of virtual short.
d) None of these
Answer
O A
O B
O D
Activate Windows
Go to Settings to activate Windows
Submit
19:26
30-10-2021
25°C Light rain a di aa ENG
arrow_forward
uluils (A) x
Bb Take Test: Quiz 1 CT2 - Circuits
A bb.cas.edu.om/webapps/assessment/take/take.jsp?course_assessment_id=_9460_1&course_id=_18678_1&content_id=_194535_1&question_num_3.x=0&toggle_state=qSho. *
E Apps
O YouTube
A Maps
M Gmail Translate
Warnings appear when halt the time,
Multiple Attempts Not allowed. This test can only be taken once.
TOOIS
minutes, 1 minute, and 30 seconds remain.
Help
Force Completion This test can be saved and resumed at any point until time has expired. The timer will continue to run if you leave the test.
Remaining Time: 24 minutes, 29 seconds.
* Question Completion Status:
1 2 3 4 5
> A Moving to another question will save this response.
« »
Question 3
1 points
Save Answer
Given the sinusoidal voltage v(t) = 50 cos (30t + 10°), what is period of this signal?
Non of the answers
0.209
0.12
4.77
A Moving to another question will save this response.
« >
1:05 AM
P Type here to search
O G 4) ENG
3/30/2021
arrow_forward
yluils (T.) 4
B Take Test: Quiz 1 CT2 - Circuits
A bb.cas.edu.om/webapps/assessment/take/take.jsp?course_assessment_id=_9460_1&course_id=_18678_18&content_id=_194535_1&question_num_5.x=0&toggle_state=qSho.
E Apps
O YouTube
Maps M Gmail A Translate
Remaining Time: 24 minutes, 12 seconds.
A Question Completion Status:
1 2 3 4 5
What is the result of the following in time domain?
20 sin 400t + 10 cos(400t + 60) – 5sin(400t – 20)
9.44 cos(400t-44.7)
Non of the answers
22.79 cos(400t+27)
15.5 cos(400t-44.7)
> A Click Submit to complete this assessment.
« < Question 5 of 5
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1:06 AM
P Type here to search
A O G 40 ENG
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Answer all the questions
You have 6 PV panels that each have the same I-V curve (ISC = 5.5 A, VOC = 45 V). (a) How many connection configurations that use all 6 panels are possible? Draw each one. (b) Draw the I-V curves for each of the configurations on one graph. You may draw the curves by hand or use a software of your choice. Clearly label each curve. (c) Assume you are to power a 2.5 Ω load with the panels. Knowing that dimmer sunlight reduces the current output of the cells but not the output voltage, what configuration would be best if you were to build it? Explain your answer.
arrow_forward
question 2
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M Fwd: Chegg India | Online Recrui X
C Q&A Expert Sign up Chegg Ind x
Zoho Creator - Chegg Expert Hiri
ggindia.com/#Form:Subject test?privateLink=bF53Pq3tqOdXDb6qq0PKbXBKnU6s212F4b2fdONuXXgZX2DTmgJz
Subject Test
Note:-
You are attempting question 7 out of 12
The transfer function is,
s(s² +s+2)
S
HS+
G(s)H(s) =
13
4
S+3s +Sí+5s+10
Calculate the angle of departure of the complex pole s= 0.647+ j1.41.
(a) 171.2°
(b) 160°
(c) 150.6°
(d) 166.9°
Answer
A
a
hp
%24
Y U
G H
.
B,
%24
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Known Vsat for LM741 ± 14V for source voltage Vs ± 15V. If Vi1 = 3 V and Vi2 = 4 V, Ri1 = Ri2 = Ro2 = 1 K Ohms. Define what is the value of Vo? how much
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Refer to the figure below in which surge protectors p and q are used to protect an expensive high-definition television. If there is a surge in the voltage, the surge protector reduces it to a safe level. Assume that each surge protector has a 0.94 probability of working correctly when a voltage
surge occurs. Complete parts (a) through (c) below.
TV
Series Configuration
Parallal Configuration
a lf the two surge protectors are arranged in series, what is the probability that a voltage surge will not damage the television?
Do not round.)
b. If the two surge protectors are arranged in parallel, what is the probability that a voltage surge will not damage the television?
(Do not round.)
c. Which arrangement should be used for better protection?
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O The parallel arangment provides better protection because it has a lower probability of protection.
O The series arrangment provides better…
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