EMF
EMF stands for Electromotive Force. It refers to the potential difference or voltage produced by a power source, such as a battery or generator, that drives electric current through a circuit. EMF is measured in volts and represents the energy per unit charge supplied by the source.
Alternatively, EMF can also refer to Electromagnetic Fields. These are invisible fields of energy created by electrically charged objects, such as power lines, appliances, and electronic devices. EMFs consist of electric fields and magnetic fields that oscillate perpendicular to each other and propagate through space. They are present in both natural and human-made environments, and their effects on health and well-being are a subject of ongoing research and debate.
As of my knowledge cutoff in September 2021, AIIMS (All India Institute of Medical Sciences) does not offer a specific “Advance Course” with a syllabus in Chemistry. AIIMS primarily offers undergraduate (MBBS), postgraduate, and super-specialty courses in the field of medicine and related sciences.
However, if you are looking for the chemistry syllabus for the MBBS entrance examination conducted by AIIMS, I can provide you with a general overview. Please note that the syllabus may vary, and it is always recommended to refer to the official AIIMS website or prospectus for the most accurate and up-to-date information. Here is a general outline of the chemistry topics covered in the AIIMS MBBS entrance examination:
- Basic Concepts of Chemistry
- States of Matter
- Atomic Structure
- Chemical Bonding and Molecular Structure
- Thermodynamics
- Equilibrium
- Redox Reactions
- Hydrogen and its compounds
- s-Block Elements (Alkali and Alkaline Earth Metals)
- p-Block Elements
- Organic Chemistry: Some Basic Principles and Techniques
- Hydrocarbons
- Environmental Chemistry
- Solutions
- Solid State
- Electrochemistry
- Chemical Kinetics
- Surface Chemistry
- Coordination Compounds
- Haloalkanes and Haloarenes
- Alcohols, Phenols, and Ethers
- Aldehydes, Ketones, and Carboxylic Acids
- Amines
- Biomolecules
- Polymers
- Chemistry in Everyday Life
Please keep in mind that this is a general overview, and the actual syllabus may have slight variations or additional topics. It is essential to refer to the official AIIMS resources for the most accurate and updated information regarding the syllabus.
Electromagnetic field
An electromagnetic field (likewise EM field or EMF) is an old style (for example non-quantum) field created by moving electric charges. It is the field portrayed by traditional electrodynamics (an old style field hypothesis) and is the old style partner to the quantized electromagnetic field tensor in quantum electrodynamics (a quantum field hypothesis). The electromagnetic field spreads at the speed of light (as a matter of fact, this field can be recognized as light) and connects with charges and flows. Its quantum partner is one of the four basic powers of nature (the others are attraction, frail cooperation and solid communication).
The field can be seen as the blend of an electric field and an attractive field. The electric field is created by fixed charges, and the attractive field by moving charges (electric flows); these two are in many cases depicted as the wellsprings of the field. The manner by which accuses and flows cooperate of the electromagnetic field is portrayed by Maxwell’s situations (which likewise depicts how time-fluctuating field can create different fields, and makes sense of why electromagnetic radiation needn’t bother with any vehicle for spread) and the Lorentz force regulation.
According to an old style point of view throughout the entire existence of electromagnetism, the electromagnetic field can be viewed as a smooth, nonstop field, engendered in a wavelike way. On the other hand, according to the viewpoint of quantum field hypothesis, this field is viewed as quantized; implying that the free quantum field (for example non-collaborating field) can be communicated as the Fourier amount of creation and destruction administrators in energy-force space while the impacts of the connecting quantum field might be broke down in irritation hypothesis through the S-grid with the guide of an entire host of numerical methods, for example, the Dyson series, Wick’s hypothesis, relationship capabilities, time-development administrators, Feynman charts and so on. Note that the quantized field is still spatially nonstop; its energy states anyway are discrete; Its energy values should be number products of ℎ f, discrete quanta of energy called photons made by the quantum field’s creation administrators. As a rule, the recurrence
f of the quantized field can be any worth over nothing, and thusly the worth of the energy quantum (photon) can be any worth over nothing, or even shift persistently in time.
Electromagnetic induction
Electromagnetic or attractive enlistment is the development of an electromotive power (emf) across an electrical conveyor in a changing attractive field.
Michael Faraday is for the most part credited with the disclosure of enlistment in 1831, and James Representative Maxwell numerically depicted it as Faraday’s law of acceptance. Lenz’s regulation depicts the course of the prompted field. Faraday’s regulation was subsequently summed up to turn into the Maxwell-Faraday condition, one of the four Maxwell conditions in his hypothesis of electromagnetism.
Electromagnetic acceptance has tracked down numerous applications, including electrical parts like inductors and transformers, and gadgets like electric engines and generators.
EMF (band)
EMF are an English elective musical gang from Cinderford, Gloucestershire, who came to unmistakable quality toward the start of the 1990s. During their underlying eight-year run, from 1989 to 1997, the band delivered three studio collections before a break. Their most memorable single, “Staggering”, arrived at number 3 on the UK Singles Graph, and was a number 1 hit on the US Board Hot 100 outline. Their presentation collection, Schubert Plunge, went to number 3 on the UK Collections Diagram. In April 2022, EMF delivered their first collection of new material in quite a while, Go Sapiens.
Electromagnetic shielding
In electrical designing, electromagnetic protecting is the act of lessening or impeding the electromagnetic field (EMF) in a space with obstructions made of conductive or attractive materials. It is normally applied to fenced in areas, for separating electrical gadgets from their environmental factors, and to links to disconnect wires from the climate through which the link runs (see Safeguarded link). Electromagnetic safeguarding that blocks radio recurrence (RF) electromagnetic radiation is otherwise called RF protecting.
EMF safeguarding effectively limits electromagnetic impedance. The safeguarding can decrease the coupling of radio waves, electromagnetic fields, and electrostatic fields. A conductive nook used to hinder electrostatic fields is otherwise called a Faraday confine. How much decrease relies a lot of on the material utilized, its thickness, the size of the safeguarded volume and the recurrence of the fields of interest and the size, shape and direction of openings in a safeguard to an occurrence electromagnetic field.
Faraday’s law of induction
Faraday’s law of enlistment (or essentially Faraday’s regulation) is a fundamental law of electromagnetism foreseeing how an attractive field will connect with an electric circuit to create an electromotive power (emf) — a peculiarity known as electromagnetic acceptance. It is the basic working standard of transformers, inductors, and many sorts of electric engines, generators and solenoids.
The Maxwell-Faraday condition (recorded as one of Maxwell’s situations) portrays the way that a spatially shifting (and furthermore conceivably time-fluctuating, contingent upon how an attractive field differs in time) electric field generally goes with a period changing attractive field, while Faraday’s regulation expresses that there is emf (electromotive power, characterized as electromagnetic work done on a unit charge when it has voyaged one round of a conductive circle) on the conductive circle when the attractive motion through the surface encased by the circle shifts in time.
Faraday’s regulation had been found and one part of it (transformer emf) was planned as the Maxwell-Faraday condition later. The condition of Faraday’s regulation can be determined by the Maxwell-Faraday condition (depicting transformer emf) and the Lorentz force (portraying motional emf). The essential type of the Maxwell-Faraday condition depicts just the transformer emf, while the situation of Faraday’s regulation portrays both the transformer emf and the motional emf.