This document provides an overview of electromagnetism and its applications. It discusses the history of electricity and magnetism dating back to ancient times. It also describes the four main effects resulting from interactions between electric charges: attraction/repulsion based on charge and distance. Additionally, it covers the different types of magnetism including ferromagnetism, diamagnetism, and paramagnetism. The document outlines key concepts like magnetic fields, electromagnetic induction, and applications such as generators, motors, and transformers.
Magnetism is considered as one component of electromagnetic forces which refers to physical phenomena arising from the force caused by magnets, objects that create fields that attract or repel other objects.
Magnetism is considered as one component of electromagnetic forces which refers to physical phenomena arising from the force caused by magnets, objects that create fields that attract or repel other objects.
Electric charges
Current
Potentialand its difference
Circuits
Heating effects
Magnetic effects
Magnetic Field Lines in straight and coiled conductors
Electromagnets
Electromagnetic Induction
Motors and Generators
Het this is Vedika Agrawal
the topic covers magnetism keeping in mind students of physiotherapy for there subject elecrotherapy.
Well it covers magnet of class 10th and 12th and also college level to some extent.
the ppt includes diagrams for almost everything for better visual understanding.
hope you find it helpfull and elaborative.
SOME BASIC PRINCIPLES OF MAGNETISM (Autosaved).docxZocelynManingo1
Electric Current and Magnetism
The Nature of Magnetism: Electricity’s Silent Partner
Magnetism is a property of a material that enables to attract or repel other materials. The presence and strength of the material’s magnetic properties can be observed by the effect of the forces of attraction and repulsion on other materials.
What makes magnets?
Magnets are actually created by tiny spinning electrons in an atom. The electrons move about the nucleus and spin like a top, creating a tiny magnetic field.
If electrons are spinning in the same direction there is more magnetism, while electrons spinning in opposite directions cancel out each others’ magnetic fields. Magnetic fields are invisible, we can only see the effects of the magnetic force.
Magnetic Field: The space around a magnet in which a magnetic force is exerted
— The shape of a magnetic field is revealed by magnetic field lines
Directed away from north poles and toward south poles
Magnets have two ends or poles, called north and south poles. At the poles of a magnet, the magnetic field lines are closer together.
The magnetic field lines around horse-shoe and disk magnets are closest together at the magnets’ poles. Unlike poles of magnets attract each other and like poles of magnets repel. Magnetic Poles: A region on a magnet which produces magnetic forces
The poles of a suspended magnet will align themselves to the poles of the Earth
Fundamental Rule: Like poles repel; opposite poles attract
If a force of attraction only is possible between an object and a magnet, then the object interacting with the magnet contains a ferromagnetic substance and is considered naturally magnetic.
If a force of repulsion is only between an object and a magnet, then the object interacting with the magnet may also be a permanent magnet or a temporarily magnetized ferromagnetic material.
Materials which are attracted by a magnet are known as magnetic materials. Iron, cobalt, nickel and many alloys of these metals like steel and alnico are magnetic.
Magnetic materials can be used to make permanent or temporary magnets unlike the non-magnetic materials which cannot.
INDUCED MAGNETISM
The process by which the screws become magnets is called Electric/Magnetic Induction. This same process is the reason why magnets attract non-magnetized magnetic substances such as the screw. The screw becomes an induced magnet with the end nearer the magnet having an opposite polarity to that of the permanent magnet. Hence attraction happens after magnetic induction occurs. The quicker way to know the polarity of a permanent or induced magnet is by the use of a magnetic compass. Compass needle is a small magnet that is free to pivot in a horizontal plane about an axis and that the end of the magnet that points to geographic north is called the north (N) pole. Likewise, the opposite end of the magnet is the south (S) pole.What are magnetic domains?
Magnetic substances like iron, cobalt and nickel
oday, the Lok Sabha, apart from introducing the Electricity (Amendment) Bill, 2022 and will take up two more Bills — the Energy Conservation (Amendment) Bill, 2022 and the New Delhi International Arbitration Centre (Amendment) Bill, 2022 — for discussion, considering and passing. The Rajya Sabha is scheduled to discuss the Central Universities (Amendment) Bill, 2022 for considering and passing.
Live updates:
Removing Uninteresting Bytes in Software FuzzingAftab Hussain
Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process.
In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds.
- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
Alt. GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using ...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
GraphSummit Singapore | The Art of the Possible with Graph - Q2 2024Neo4j
Neha Bajwa, Vice President of Product Marketing, Neo4j
Join us as we explore breakthrough innovations enabled by interconnected data and AI. Discover firsthand how organizations use relationships in data to uncover contextual insights and solve our most pressing challenges – from optimizing supply chains, detecting fraud, and improving customer experiences to accelerating drug discoveries.
SAP Sapphire 2024 - ASUG301 building better apps with SAP Fiori.pdfPeter Spielvogel
Building better applications for business users with SAP Fiori.
• What is SAP Fiori and why it matters to you
• How a better user experience drives measurable business benefits
• How to get started with SAP Fiori today
• How SAP Fiori elements accelerates application development
• How SAP Build Code includes SAP Fiori tools and other generative artificial intelligence capabilities
• How SAP Fiori paves the way for using AI in SAP apps
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
UiPath Test Automation using UiPath Test Suite series, part 5DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 5. In this session, we will cover CI/CD with devops.
Topics covered:
CI/CD with in UiPath
End-to-end overview of CI/CD pipeline with Azure devops
Speaker:
Lyndsey Byblow, Test Suite Sales Engineer @ UiPath, Inc.
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...SOFTTECHHUB
The choice of an operating system plays a pivotal role in shaping our computing experience. For decades, Microsoft's Windows has dominated the market, offering a familiar and widely adopted platform for personal and professional use. However, as technological advancements continue to push the boundaries of innovation, alternative operating systems have emerged, challenging the status quo and offering users a fresh perspective on computing.
One such alternative that has garnered significant attention and acclaim is Nitrux Linux 3.5.0, a sleek, powerful, and user-friendly Linux distribution that promises to redefine the way we interact with our devices. With its focus on performance, security, and customization, Nitrux Linux presents a compelling case for those seeking to break free from the constraints of proprietary software and embrace the freedom and flexibility of open-source computing.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
2. History The origin of electricity is and magnetism sprang from ancient men’s curiosity over the ability of two materials, amber and lodestone to attract other materials. With the publication of James Clerk Maxwell's 1873 Treatise on Electricity and Magnetism in which the interactions of positive and negative charges were shown to be regulated by one force.
3. History There are four main effects resulting from these interactions, all of which have been clearly demonstrated by experiments: Electric charges attract or repel one another with a force inversely proportional to the square of the distance between them: unlike charges attract, like ones repel.
4. History Magnetic poles attract or repel one another in a similar way and always come in pairs: every north pole is yoked to a south pole. An electric current in a wire creates a circular magnetic field around the wire, its direction depending on that of the current.
5. History A current is induced in a loop of wire when it is moved towards or away from a magnetic field, or a magnet is moved towards or away from it, the direction of current depending on that of the movement.
6. Magnetism It is the term used to refer to the ability of lodestones to attract iron. A material having this property is called a magnet. The modern name for lodestone or magnetic iron ore is magnetite.
7. Classification Natural They are found in nature and are called lodestones or magnetite. Artificial May be temporary or permanent. Retentivityis the ability of a magnetic material to retain its magnetism after it has been magnetized.
8. Classification Electromagnet A magnet whose magnetic field is produced by electric current passing through coils of wire wrapped around a core.
9. Types Ferromagnetism Are strongly attracted be a magnet. They include iron, cobalt, nickel, and steel. In ferromagnetic materials, all electrons are spinning in the same direction. Diamagnetism Is a weak response to magnetic field. Materials are repelled by a magnetic field. Metals, like bismuth, copper, gold, silver, lead, nonmetals, water, and organic compounds are diamagnetic.
11. Geomagnetism Referred as Earth’s magnetism. William Gilbert- conducted experiments and concluded that the Earth was a huge magnet.
12. Law of Magnetic Poles Peter Petegrinus- same poles repel. William Gilbert- confirmed it. John Michael- force of attraction or repulsion between poles varies inversely as the square of the distance between them.
13. Law of Magnetic Poles Charles de Coulomb- force between two poles is directly proportional to the product of the poles and inversely proportional to the square of the distance between them. By combining these relation, he proposed the equation: m1m2 F= k d2 Where F is the force, k as the constant, m are pole strengths in ampere, and d is the distance in meters.
14. Magnetic Field Is a region of space where a magnet is capable of exerting a force on a magnetic material. Analogous to the electric field around an electric charge.
15. Magnetic Field Is also defined in terms of the force exerted on an electric charge moving in the field. Michael Faraday- introduced the idea that the magnetic field is made up of lines of force which is called the magnetic flux.
16. Magnetic Field Magnetic flux- it’s unit is weber(Wb), flux per unit area perpedicular to tefiel is called magnetic field intensity– the SI unit for I is tesla. Named afte Nikola tesla.
17. Magnetic Effect of Current ChistianOersted- made a demonstration on the heating effect of a current. by this , he accidentally discovered that a current-carrying conductor produces a magnetic field and this was influenced the orientation of the nearby compass. right hand rule- the magnetic field produced by a current may be determined by this.
18. The Electromagnet A magnet whose magnetic field is produced by electric current passing through coils of wire wrapped around a core and the strength depends on the number of turns and current. The first ever electromagnet was made by William Sturgeonand later improved by Joseph Henry.
19. Uses They can be turn on/off. The strength can be varied. Very large magnetic field can be produced. Used in steel yards. Essential parts in the construction of electric meters, electric generators, circuit breakers, motors and others.
20. Electromagnetic Induction Process by which a changing magnetic flux produces electric current. The current and emf produce is called induced current an induces emf. There are two laws describing the electromagnet induction: Faraday’s law and Lenz’s law.
21. Electromagnetic Induction Faraday’s law-states that whenever there is a change in the magnetic flux in a circuit, an induced current is produce. Lenz’s law- states that the induced current flows in a direction so as to oppose the change causing it.
22. Application Discovery of Faraday and Henry paved the development of the generator, transformer and other devices that made the production of electricity cheaper.
23. AC/DC Generator Converts mechanical energy to electrical energy. HyppolytePixii- was credited for having made the first electric generator.
24. Parts of a Simple AC generator armature- consist of coils of insulated wire wound around a soft iron core. - attached to a shaft so that it can rotate between the poles of the magnet. - ends are connected to the external circuit by means of slip rings that rotate with the armature.
25. Parts of a Simple AC generator Slip rings- made of either brass or copper. - insulated from each other and from he shaft. - each rings slides against the stationary brush . Brush- collect the current and transmit it to the external circuit.
26. Motor A generator operating reverse. Changes electrical energy to mechanical energy. Has the same parts as a simple DC generator.
27. Parts of a Motor Brushes are connected to a battery to send current to the armature. Magnetic field produced by this current in the armature interacts with the field of the magnet and exerts a force that rotates the armature. A shaft attached to the armature makes the motion for doing work.
29. Transformer a device used to raise or lower the voltage of an AC source. consist primary and secondary coils placed side by side having a common iron core.
30. Transformer Plays a major role in power transmission. Whenever electricity is transmitted , there is always loss of power because of the resistance of the transmission wires.
31. Types of Transformer Step down transformer- lowers the voltage. Step up transformer- raises the voltage.