#Electromagnetic Induction Physics

[spacejax]

dont look at me like that..

[quietimtryingtostudy]

Lenz’s Law is in accordance with/is a consequence of Conservation of Energy

[paperbakc]

I think I'll miss you forever, like the stars miss the sun on a morning sky //kiss me hard before you go, summertime sadness.

[thevoidmeows]

In electromagnetism, inductance is the tendency of an electrical conductor to oppose a change in the electric current flowing through it. It has units of Henry, and for small inductance it can be denoted in units of microhenries (μH). So, the entire time we were covering this in my physics class, i was suffering from my severe frankenstein brainrot, and this is the result lol

[neet-aspirant]

26–08–2024, Monday 🧋

subha krishna janmashtami everyone! 🪈🦚

🌞 6:00 AM with 🧘‍♀️

🌙 12:00 AM 🛏

revised flowering plants and evolution (1.5h)

gave bio practice test (2h)

maths practice (2h)

coordination compounds (1.5h)

electrochemistry (2h)

eng lit (1h)

electromagnetic induction (2h)

⏳️ Total Time – 12 hours

🥞 ... To Do List For Tomorrow

chemistry numericals

revise another 2-3 chapters of chemistry

bio revision

psych questions

physics lecture

+ more if there's time

[shankhachil]

Countdown to JEE (Main): Week 2/33

I've done a lot this week! Hit almost all the topics I wanted to. You'll notice that there are some topics I've covered but not solved questions for — these are the ones I studied for the first time and/or made notes for.

Other than that, I have my school unit tests from next Wednesday, so there's that. Sadness.....

Test results:

Test at physics tuition center: 116/120, rank 1/67! Yay!

Aryabhatta National Mathematics Competition: score unknown, result expected on 10/07/2024.

Topics covered:

Physics: Potential and Capacitance; Electromagnetic Waves, Waves on a String; Modern Physics; Gravitation; Electromagnetic Induction (6/3)

Chemistry: Chemical Thermodynamics; Atomic Structure; Chemical Equilibrium; Halogen Derivatives; Solid State (5/3)

Mathematics: Differential Equations; Area Under a Curve; Applications of Derivatives; Determinants; Complex Numbers; Ellipses; Hyperbola; Binomial Theorem; Functions (9/3)

Questions solved:

Physics: - FIITJEE Electrostatics* module, Assignment section — 56 questions, 52 correct - Allen Potential and Capacitance module, O1 and O2 — 88 questions, 77 correct -FIITJEE JEE (Main) archives, Electromagnetic Waves — 12 questions, 10 correct - Allen Waves on a String module, O1 and O2 — 67 questions, 59 correct - FIITJEE JEE (Main) archives, Modern Physics — 40 questions, 34 correct - Allen Gravitation module, O1 and O2 — 61 questions, 55 correct Total: 383/60 questions, 287 correct *FIITJEE includes Potential and Capacitance under Electrostatics, while Allen does not.

Chemistry: - Allen Chemical Thermodynamics module, S1 and S2 — 40 questions, 37 correct - R. N. Sarin, Atomic Structure — 18 questions, 18 correct - R. N. Sarin, Chemical Equilibrium — 11 questions, 11 correct - Allen Halogen Derivatives module, JEE (Advanced) archives — 24 questions, 22 correct Total: 93/60 questions, 88 correct

Mathematics: - Allen Differential Equations module, O1 — 30 questions, 25 correct - Allen Area Under a Curve module, Do Yourself 1, 2, 3, 4, 5 and O2 — 51 questions, 46 correct - FIITJEE JEE (Main) archives, Applications of Derivatives — 45 questions, 39 correct - FIITJEE JEE (Main) archives, Determinants — 22 questions, 17 correct - Yellow Book, Complex Numbers, single-choice questions — 20 questions, 17 correct - Pink Book, Ellipses, single-choice questions — 16 questions, 14 correct - Yellow Book, Binomial Theorem, single-choice questions — 15 questions, 12 correct - Pink Book, Hyperbolas, single-choice questions — 21 questions, 18 correct - Allen Functions module, O1 and JEE (Main) archives — 48 questions, 44 correct Total: 268/60 questions, 232 correct

GRAND TOTAL: 744/400 questions, 607 correct

Upcoming tests:

23/06/2024 (next Sunday) — Allen monthly test. Topics: Kinetic Theory of Gases; Physical Thermodynamics; Electrostatics; Potential and Capacitance; Current Electricity; Electromagnetic Induction; Alternating Current; Electromagnetic Waves; Waves on a String; Sound Waves; Ray Optics; Wave Optics; Circle; Functions; Differentiation; Applications of Derivatives; Indefinite Integrals; Definite Integrals; Area Under a Curve; Differential Equations; Matrices; Silicates; Molecules That Do Not Exist; Coordination Chemistry; Metallurgy; Electronic Displacement Effects; Halogen Derivatives; Atomic Structure; Chemical Equilibrium; Solid State; Solutions; Chemical Kinetics; Chemical Thermodynamics. Yeah. I've no idea how I'm going to finish the syllabus in time, since I haven't even started Coordination Chemistry, Metallurgy or Alternating Current — they finished the classes in Allen before I even joined the batch. Anyway, let's see.

That'll be all till next week — see you again!

[donniesexceptionalmind]

Turbolent Plasma - The Source of the Universe's Magnetic Fields?

I promised days ago, now here I am.

Have a nice picture of the Whirlpool Galaxy: the lines you see are the lines of the magnetic field - impressive & stunning,right?

Credit: NASA, the SOFIA science team, A. Borlaff; NASA, ESA, S. Beckwith (STScI) and the Hubble Heritage Team (STScI/AURA)

The origin & evolution of cosmic magnetism is one of the most profound mysteries in astrophysics & cosmology.

Physicists at MIT have developed a new paradigm for understanding the origins of magnetic fields by studying how the microphysics of collisionless plasmas affect macroscopic astrophysical processes.

The plasmas between stars & galaxies are low density, which means that the particles in cosmological plasmas never collide, a key property that was included in the model the researchers developed.

By including detailed small-scale effects of plasma dynamics on macroscopic astrophysical processes, the model demonstrates that magnetic fields can be spontaneously created from flows in collisionless plasma.

What is plasma?

It is one of the four fundamental states of matter, along with solid, liquid & gas.

It is an ionized gas consisting of positive ions & free electrons.

It was first described by chemist Irving Langmuir in the 1920s.

Side note: The solar wind was the first astrophysical plasma in which direct measurements of turbulence were made.

Most of the visible universe is in a plasma state & usually the flows in these plasmas are turbulent.

So what does 'turbolence' mean?

From a fundamental point of view, turbulence is a paradigmatic example of nonlinear dynamics in open systems with many degrees of freedom.

It's basically what one would describe as chaos. Which is an okayish description. The image is important.

The system typically establishes a quasistationary self-organized state far from thermodynamic equilibrium. For this to happen, a permanent input, redistribution & output of energy is required. Basically, to have a stable system, you have to have a constant energy flow.

Various fundamental aspects of turbolence still belong to the most important unsolved problems of classical physics.

Alright, now that we've got THAT covered, let's dive into the study, shall we?

Why is all THIS important anyway?

Observation have shown that there are massive magnetic fields in our galaxy & in the intracluster medium (ICM) of galaxy clusters, but the why & how is still unclear.

It is widely believed that such dynamically important magnetic fields first arose as weak "seed" fields generated by cosmic batteries, subsequently amplified to currently observed levels by the turbulent dynamo of the plasma: a fundamental plasma process that converts the mechanical energy of plasma motions into magnetic energy through electromagnetic induction.

The origin of planetary, stellar & cosmic magnetic fields, the physics of accretion disks, the acceleration & propagation of high-energy cosmic rays, as well as many other space & astrophysical processes could be these turbulent plasmas!

There are two broad perspectives on the origin of cosmic seed magnetic fields:

The primordial origin (early universe)

The galactic origin

In the primordial origin seed fields are generated before recombination or the era of structure formation.

The earliest seed fields can be generated by exotic early-Universe mechanisms during inflation & cosmological phase transitions. At later times during the radiation-dominated era, seed fields can be produced e.g. through plasma fluctuations. These mechanisms potentially explain the pervasiveness of magnetic fields, but with predicted amplitudes that are typically weak (∼10−20 G).

Scenarios based on a galactic origin postulate that seed fields are generated through gravitational collapse or collision-related events occurring during structure formation & stellar evolution in the early Universe

(I won't go into the details of HOW because then I'd go completely through the roof & loose you all, but there are MANY ways for the birth of these seed fields).

These seed fields generated locally within stars or galaxies, are typically much stronger than the primordial seed fields & can potentially be transported into & diluted throughout the intergalactic medium (IGM) or early intercluster medium (ICM) by powerful galactic winds or jets.

Once formed, seed magnetic fields are thought to be amplified & sustained by the turbulent plasma dynamo after reionization, when the baryonic material in the universe becomes electrically conducting.

The possibility that turbolent plasma could also be the origin & not just the thriving force of these magnetic fields had not yet been explored yet.

In conclusio: they did simulations & they showed that, in addition to generating new magnetic fields, the turbulence of plasmas can also amplify magnetic fields once they’ve been generated.

This helps explain how magnetic fields that originate on small scales can sometimes eventually reach to stretch across vast distances.

Further research remains to be done.

A composite image illustrating the birth and growth of magnetic fields in turbulent plasmas, from weak fields on small scales (top left) to strong fields on large scales (bottom right). Credit: Columbia University

Have a cookie for reading, fellow nerds!

🤌🏾🍪

[insane-in-the-membranee]

✨STUDY HARD NOVEMBER✨

By channeling my current efforts into my studies, I'm manifesting the future I desire.

-----------------------------------------------

•Biology

1. Biotechnology: Principles and Processes ✅

2. Biotechnology and Its Applications ✅

3. Principles of Inheritance and Variation

4. Molecular Basis of Inheritance

5. Organisms and Populations

6. Ecosystem ✅

7. Biodiversity and Conservation ✅

•Chemistry

1. Chemical Kinetics ✅

2. Coordination Compounds ✅

3. Haloalkanes and Haloarenes ✅

4. Alcohols, Phenols and Ethers

5. Aldehydes, Ketones and Carboxylic Acids

6. Amines ✅

7. Biomolecules ✅

•Physics

1. Electric Charges and Fields ✅

2. Electrostatic Potential and Capacitance ✅

3. Current Electricity ✅

4. Moving Charges and Magnetism ✅

5. Magnetism and Matter ✅

6. Electromagnetic Induction ✅

7. Alternating Current ✅

8. Electromagnetic Waves ✅

9. Ray Optics and Instruments ✅

10. Wave Optics ✅

11. Dual Nature of Radiation and Matter ✅

12. Atoms ✅

13. Nuclei ✅

14. Electronic Devices ✅

[chefeader]

TODAY I did electromagnetic induction lecture from physics wallah, i was solving this one homework problem and i solved it 5 times and got it right on the 6th time ( w a lil help from my classmate)

revised solutions chapter from nitesh devani sir :) he makes concepts so simple and easy to understand, definitely recommend learning neet chemistry from him.

i didn't do much this week, i had my institute physics class in morning then i spent the whole day practically doing emi lecture , i was really unproductive, i couldn't finish much of my syllabus, im drowning in it ngl, got my period this week and honestly it made me so weak and sick, i couldn't complete my goals for the week , i feel so sad, these mood swings are going to eat me up tonight, im so sad.

ps: there is no love greater than the love of your parents :,( my mom brings me cut fruits every evening <33 , i always leave the oranges for my dad to eat.

AH, everyday my sister tries to wake me up early and I end up oversleeping in morning , i have to submit my bio homework for animal kingdom tomorrow too, and take shower in the morning as my period is over tomorrow.

Aight , Goodnight. Thank you for following x <33

question: do y'all wanna start a 20 day study challenge w me? :)

[dan6085]

Here's a list of 20 of the greatest scientists of all time, along with their accomplishments and years of life:

1. **Isaac Newton (1643-1727)**:

- **Accomplishments**: Formulated the laws of motion and universal gravitation; developed calculus; made significant contributions to optics.

2. **Albert Einstein (1879-1955)**:

- **Accomplishments**: Developed the theory of relativity; explained the photoelectric effect, which led to quantum theory; E=mc² equation.

3. **Galileo Galilei (1564-1642)**:

- **Accomplishments**: Improved the telescope; made pioneering observations in astronomy; formulated the laws of motion and inertia.

4. **Charles Darwin (1809-1882)**:

- **Accomplishments**: Developed the theory of evolution by natural selection; wrote "On the Origin of Species."

5. **Marie Curie (1867-1934)**:

- **Accomplishments**: Conducted pioneering research on radioactivity; first woman to win a Nobel Prize; only person to win Nobel Prizes in two different sciences (Physics and Chemistry).

6. **Nikola Tesla (1856-1943)**:

- **Accomplishments**: Developed alternating current (AC) electrical systems; invented the Tesla coil; made significant contributions to electromagnetism and wireless communication.

7. **James Clerk Maxwell (1831-1879)**:

- **Accomplishments**: Formulated the theory of electromagnetism; developed Maxwell's equations, which unify electricity, magnetism, and light.

8. **Louis Pasteur (1822-1895)**:

- **Accomplishments**: Developed pasteurization; made groundbreaking discoveries in germ theory and vaccination.

9. **Michael Faraday (1791-1867)**:

- **Accomplishments**: Discovered electromagnetic induction; invented the electric motor and generator; contributed to the field of electrochemistry.

10. **Thomas Edison (1847-1931)**:

- **Accomplishments**: Invented the phonograph, the motion picture camera, and the long-lasting electric light bulb; held over 1,000 patents.

11. **Niels Bohr (1885-1962)**:

- **Accomplishments**: Developed the Bohr model of the atom; made foundational contributions to quantum mechanics and the understanding of atomic structure.

12. **Johannes Kepler (1571-1630)**:

- **Accomplishments**: Formulated the three laws of planetary motion; made significant contributions to the field of optics.

13. **Aristotle (384-322 BC)**:

- **Accomplishments**: Made foundational contributions to numerous fields including biology, physics, metaphysics, logic, and ethics.

14. **Stephen Hawking (1942-2018)**:

- **Accomplishments**: Developed theories on black holes and cosmology; wrote "A Brief History of Time"; contributed to the understanding of singularities and Hawking radiation.

15. **Gregor Mendel (1822-1884)**:

- **Accomplishments**: Founded the field of genetics; discovered the basic principles of heredity through experiments with pea plants.

16. **Leonardo da Vinci (1452-1519)**:

- **Accomplishments**: Made significant contributions to anatomy, engineering, and hydrodynamics; renowned for his scientific observations and detailed anatomical drawings.

17. **Richard Feynman (1918-1988)**:

- **Accomplishments**: Developed quantum electrodynamics (QED); made contributions to particle physics and superfluidity; known for his lectures and books.

18. **Carl Linnaeus (1707-1778)**:

- **Accomplishments**: Developed the system of binomial nomenclature for naming organisms; laid the foundations for modern taxonomy.

19. **Alexander Fleming (1881-1955)**:

- **Accomplishments**: Discovered penicillin, the first widely used antibiotic, which revolutionized medicine.

20. **Max Planck (1858-1947)**:

- **Accomplishments**: Originated quantum theory; formulated Planck's law of black-body radiation; contributed to the understanding of energy quanta.

These scientists have made extraordinary contributions to their respective fields, shaping our understanding of the natural world and advancing human knowledge in profound ways.

[kassiedoodles-xo]

omg ur Ninjago oc uses electromagnetic fields? That's so cool :000

Mine can control the bonds between molecules (ofc with lots of headaches lmaoo it's so confusing)

So I get what you mean by not paying attention and focusing on science lmaoooo !!

Hope it's going good so far!!

Yep! At least it's the physics of it :) my ocs elemental power is Magic! Let me break it down

This is just what I wrote so I'm still adding to it, also i used to hate physics in school lol, now i like it cause i actually benefits me

The physics of magic:

For magic to be used and for it to affect the surroundings, the master must establish a physical interaction between the electromagnetic fields that are produced when summoning the power, and themselves. This causes the fields to transfer energy to the Master and the Master can transfer energy to the fields. When using Magic, the Master creates their own magnetic field, this allows the kinetic energy to move in the magnetic field of the Master, increasing the energy stored in the field. How is the energy transferred through? When a magnetic field constantly changes, it creates an electrical current, this transfers energy. (Michael Faraday’s law of induction).

If the motion of energy within the magnetic field causes the energy to increase, it created an electrical current which allows the kinetic energy to be transferred to objects, this is most commonly presented by pure energy being sent towards targets (e.g defence and attack spells) however this can also be used in non- combat spells (e.g levitating objects).

Magic essentially uses quasiparticles (collective behaviour of a group of particles that can be treated as if they were a single particle) to improve conductivity in their surroundings, this allows the Master to draw energy from the motion of the energy around them, caused by the Gamma and Cosmic Rays from the moon. Since Masters of Magic draw energy from something so far away, they have to use the process of quantum entanglement to influence the physical systems in their surroundings.

Okay so this is what I have so far! I also have a few more interesting bits but I'll be publishing that later😊

ALSO YOUR OC CONTEOLING MOLECULAR BONDS IS SO FRICKIN COOL!!!

[quietimtryingtostudy]

Magnetic flux

is said to be

one weber

if magnetic field of unit strength is acting normally through surface area of 1 m^2

[unwelcome-ozian]

The Department of Defense calls for new weapons systems designed to work on the psychological underpinnings of a population should give human rights activists great cause for alarm. The use of electromagnetic weapons to alter the emotional state, hamper the ability of an enemy or US citizens, to think clearly, and result in chaos and pain are morally problematic for a number of reasons:

1. Creating fear, anxiety, confusion and irrational behavior within an individual or a population is counterproductive to the operations of a free society and to the execution of warfare. Chaos only breeds the need for greater and greater means of physical repression; irrational behavior is by definition unpredictable and as such provides significant difficulty when the task is to secure an area.

2. These weapons leave no tell tale clues. There are no bullet holes or gross damage (with the exception of those designed to maim, burn or explode targets).

3. They are operated from a great distance, meaning that the operator has no feedback as to the effects of his or her actions. This provides us with a very dangerous circumstance very similar to Millgram’s experiment where we can predict with certainty gross abuses of power.

4. Any device that invades a person's mind, either through induction of “evoked potentials” through electromagnetic means or through the various “crazy-making” tactics employed in both information warfare and psychological operations is a violation of human rights and cognitive liberty.

[timeclonemike]

It's never been explained exactly what the Gauss Gun / Tau Cannon in Half Life really is or how it works. The name Gauss Gun and the model appearing to incorporate multiple copper coils points towards some sort of railgun / coilgun / magnetic launcher, but the Tau Cannon name is less clear. It could be referring to tau particles, tau as a measurement of time, or even TAU being an initialism for a complex technical descriptor.

It doesn't help that the lab facility it is found in is a laser research center, and the Black Mesa remake goes out of its way to include a dry erase board exploring some of the math and physics behind the weapon as if it was based on optronics, rather than electromagnetic induction.

Oh, and it uses enriched uranium as ammunition. Whether as a projectile or a power source, again, there's too much ambiguity to say one way or another.

[neet-aspirant]

06–08–2024, Tuesday

evolution (0.5 h)

psych notes (0.5 h)

read through electromagnetic induction (0.5 h)

physics lecture (2.5 h)

maths (1 h)

Total Time – 5 h + school