JEE Physics/ Lakshmikanta Satapathy/ Direct current/ Question on Resistance across one side of a cube made from twelve identical wires of given resistance solved using the symmetry of the network
JEE Physics/ Lakshmikanta Satapathy/ Electromagnetism QA part 7/ Question on doubling the range of an ammeter by shunting solved with the related concepts
JEE Physics/ Lakshmikanta Satapathy/ Direct Current QA part 14/ JEE question on comparison of Voltage Power Current density and Electric field of two wires in series solved with the related concepts
JEE Physics/ Lakshmikanta Satapathy/ Electromagnetism QA part 7/ Question on doubling the range of an ammeter by shunting solved with the related concepts
JEE Physics/ Lakshmikanta Satapathy/ Direct Current QA part 14/ JEE question on comparison of Voltage Power Current density and Electric field of two wires in series solved with the related concepts
Application of Linear Algebra in Electrical CircuitBadruzzman Jhon
Perhaps one of the most apparent uses of linear algebra is that which is used in
Electrical Engineering. As most students of mathematics have encountered, when the
subject of systems of equations is introduced, math class is temporarily converted into a
crash course in electrical components. There, the resistor, voltage source and capacitor
take the stage as well as their accompanying language consisting of Kirchoff and Ohm.
With the basic concepts down, math class is resumed and students can look forward to
playing with n number of equations with n number of unknowns. To solve for the
currents and voltages, students can use simplification and substitutions, but with many
equations, this task quickly becomes very time consuming and tedious.
However, using Gaussian Elimination along with computers, engineers are able to
efficiently calculate unknown values of extremely large and complex systems without
performing hundreds of calculations and exhaustive bookkeeping of values
Application of Linear Algebra in Electrical CircuitBadruzzman Jhon
Perhaps one of the most apparent uses of linear algebra is that which is used in
Electrical Engineering. As most students of mathematics have encountered, when the
subject of systems of equations is introduced, math class is temporarily converted into a
crash course in electrical components. There, the resistor, voltage source and capacitor
take the stage as well as their accompanying language consisting of Kirchoff and Ohm.
With the basic concepts down, math class is resumed and students can look forward to
playing with n number of equations with n number of unknowns. To solve for the
currents and voltages, students can use simplification and substitutions, but with many
equations, this task quickly becomes very time consuming and tedious.
However, using Gaussian Elimination along with computers, engineers are able to
efficiently calculate unknown values of extremely large and complex systems without
performing hundreds of calculations and exhaustive bookkeeping of values
Ekeeda Provides Online Electrical and Electronics Engineering Degree Subjects Courses, Video Lectures for All Engineering Universities. Video Tutorials Covers Subjects of Mechanical Engineering Degree.
JEE Physics/ Lakshmikanta Satapathy/ Work Energy and Power/ Force and Potential energy/ Angular momentum and Speed of Particle/ MCQ one or more correct
JEE Physics/ Lakshmikanta Satapathy/ MCQ On Work Energy Power/ Work-Energy theorem/ Work done by Gravity/ Work done by Air resistance/ Change in Kinetic Energy of body
CBSE Physics/ Lakshmikanta Satapathy/ Electromagnetism QA/ Magnetic field due to circular coil at center & on the axis/ Magnetic field due to Straight conductor/ Magnetic Lorentz force
CBSE Physics/ Lakshmikanta Satapathy/ Amplitudes of Reflected and Transmitted waves/ Sound as Pressure wave/ Speed of sound in Fluids/ Intensity and Loudness of sound
CBSE Physics/ Lakshmikanta Satapathy/ Wave motion/ Vibration of air columns/ Open & closed pipes/ Fundamental frequency & overtones/ End correction/ Resonance tube
CBSE Physics/ Lakshmikanta Satapathy/ Wave Motion Theory/ Reflection of waves/ Traveling and stationary waves/ Nodes and anti-nodes/ Stationary waves in strings/ Laws of transverse vibration of stretched strings
CBSE Physics/ Lakshmikanta Satapathy/ Wave theory/ path difference and Phase difference/ Speed of sound in a gas/ Intensity of wave/ Superposition of waves/ Interference of waves
JEE Mathematics/ Lakshmikanta Satapathy/ Definite integrals part 8/ JEE question on definite integral involving integration by parts solved with complete explanation
JEE Physics/ Lakshmikanta Satapathy/ Question on the magnitude and direction of the resultant of two displacement vectors asked by a student solved in the slides
JEE Mathematics/ Lakshmikanta Satapathy/ Quadratic Equation part 2/ Question on properties of the roots of a quadratic equation solved with the related concepts
JEE Mathematics/ Lakshmikanta Satapathy/ Probability QA part 12/ JEE Question on Probability involving the complex cube roots of unity is solved with the related concepts
JEE Mathematics/ Lakshmikanta Satapathy/ Inverse trigonometry QA part 6/ Questions on Inverse trigonometric functions involving tan inverse function solved with the related concepts
JEE Mathematics/ Lakshmikanta Satapathy/ Inverse Trigonometry QA part 5/ Question on sin inverse cosine inverse and tan inverse solved with the related concepts
JEE Physics/ Lakshmikanta Satapathy/ Transient current QA part 1/ JEE question on maximum and minimum current from a DC source connected across Inductance and Resistance solved with the related concepts
JEE Mathematics/ Lakshmikanta Satapathy/ Binomial theorem part 6/ JEE Question on the coefficient of a given power of x in the expansion of 100 factors
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Dr. Vinod Kumar Kanvaria
Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
International FDP on Fundamentals of Research in Social Sciences
at Integral University, Lucknow, 06.06.2024
By Dr. Vinod Kumar Kanvaria
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Safalta Digital marketing institute in Noida, provide complete applications that encompass a huge range of virtual advertising and marketing additives, which includes search engine optimization, virtual communication advertising, pay-per-click on marketing, content material advertising, internet analytics, and greater. These university courses are designed for students who possess a comprehensive understanding of virtual marketing strategies and attributes.Safalta Digital Marketing Institute in Noida is a first choice for young individuals or students who are looking to start their careers in the field of digital advertising. The institute gives specialized courses designed and certification.
for beginners, providing thorough training in areas such as SEO, digital communication marketing, and PPC training in Noida. After finishing the program, students receive the certifications recognised by top different universitie, setting a strong foundation for a successful career in digital marketing.
1. Physics Helpline
L K Satapathy
Direct Current - 3
Resistance Cube 3
Resistance across one edge of a Cube
2. Physics Helpline
L K Satapathy
Twelve identical wires , each of
resistance 60 ohms , are
connected together to form a
cube ABCDEFGH as shown in
the figure. Find the resistance
between the points A and H of
the cube. Also find the resistance
between A and H when the wire
AH is removed.
A
D C
B
E F
GH
Direct Current - 3
Resistance across one edge of a Cube
3. Physics Helpline
L K Satapathy
Direct Current - 3
Resistance across one edge of a Cube
I2
I2-I3
I2
I3
I1
I
I3
I2
I2
2(I2-I3)
A
D C
B
E F
GH
I2-I3
V
Let IAB = IAD = I2
Let us connect a cell of emf V volts across AH
Let the current entering the network at A = I
Wires AB and AD are symmetric about AH
They carry equal currents
Let the resistance of each wire = r [ given r = 60 ]
Let IAH = I1
Applying Kirchhoff’s junction rule at point A , we get
I = I1 + 2I2 - - - - - (1)
4. Physics Helpline
L K Satapathy
Direct Current - 3
Resistance across one edge of a Cube
Applying junction rule at D and B , we get IDC = IBC = (I2 - I3) ICF = 2(I2 - I3)
Applying junction rule at E and G , we get IFE = IFG = (I2 - I3)
Let IDE = IBG = I3
IGH = IEH = I2
Again wires GH and EH are symmetric about AH.
They carry equal currents.
I2
I2-I3
I2
I3
I1
I
I3
I2
I2
2(I2-I3)
A
D C
B
E F
GH
I2-I3
V
Current I = I1 + 2I2 must leave the network at H
Again wires DE and BG are symmetric about AH.
They carry equal currents.
Now we can define the currents in the other wires of the network.
5. Physics Helpline
L K Satapathy
Direct Current - 3
Resistance across one edge of a Cube
I2
I2-I3
I2
I3
I1
I3
I2
I2
2(I2-I3)
A
D C
B
E F
GH
I2-I3
Let the required resistance between A and H = x
And for the wire AH , V = I1 r
(I1 + 2I2)x = I1 r - - - (2)
I1 r = I2 r + I3 r + I2 r = (2I2 + I3)r
I1 = 2I2 + I3 - - - - - (3)
I3r = (I2-I3)r + 2(I2-I3)r + (I2-I3)r
I3 = 4(I2-I3) 5I3 = 4I2 I3 = - - - - (4)
5
4I2
Applying Ohm’s law for the network between A and H
V = Ix = (I1 + 2I2)x [ using eqn. (1) ]
For loop ABGH , VAH = VAB + VBG + VGH
For loop BCFG , VBG = VBC + VCF + VFG
6. Physics Helpline
L K Satapathy
Direct Current - 3
Resistance across one edge of a Cube
1 2 3 2 2 2
2 1
4 14
(3) &(4) 2 2
5 5
5
14
I I I I I I
I I
1 2 1(2) ( 2 )I I x I r
1 1 1 1 1
5 12
7 7
I I x I r I x I r
7 7
60 35
12 12
[ ]A sr nx
7. Physics Helpline
L K Satapathy
Direct Current - 3
Resistance across one edge of a Cube
Resistance of cube about AH = x
Resistance of removed wire = r
Let resistance of remaining cube about AH = y
We need to find the value of y.
Resistance of y and r in parallel = x
1 1 1
y r x
1 1 1 12 1 5
7 7y x r r r r
7 7 60
84
5 5
[ ]
r
A sy n
A
D C
B
E F
GH
For the 2nd part of the question , wire AH is removed as shown.
8. Physics Helpline
L K Satapathy
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