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Слайд 1 - SPACE RESEARCH at FMI
Слайд 1 - SPACE RESEARCH at FMI

Chapter 4: Magnetostatics
Chapter 4: Magnetostatics

... • A similar reversal concept applies to tangential components of the electric field E and magnetic field H. • Reversal concept related to tangential ...
Sample manuscript showing specifications and style
Sample manuscript showing specifications and style

... hazard forecast and aeronautics1-4. Fiber-optic sensors for magnetic fields have many advantages compared to their electronic counterparts, such as immunity to electromagnetic interference, high sensitivity, fast response and low power consumption. Among the range of possible fiber optic sensors, th ...
Practice Questions for I Year/I Part Engineering Physics
Practice Questions for I Year/I Part Engineering Physics

... 20. Two capacitors of capacitance 4 μF and 12μ F respectively are connected in series and the combination is connected momentarily across a 200V battery. The charged capacitors are now isolated and connected in parallel, similar charge plates being connected, together, Calculate common potential. (7 ...
chapter link
chapter link

Practice Quiz (Chapter 25 Electromagnetic Induction) 1) Thrust a
Practice Quiz (Chapter 25 Electromagnetic Induction) 1) Thrust a

Magnetic field
Magnetic field

CONTINENTAL DRIFT SEA-FLOOR SPREADING PLATE TECTONICS
CONTINENTAL DRIFT SEA-FLOOR SPREADING PLATE TECTONICS

Magnetism and Electricity - Bloomsburg Area School District
Magnetism and Electricity - Bloomsburg Area School District

... 10. Generators produce back and forth current called alternating current. Batteries produce current in one direction, called direct current. ...
A Brief Outline of the History of Electromagnetism
A Brief Outline of the History of Electromagnetism

(SV) “Ionosat”: Orbital cluster
(SV) “Ionosat”: Orbital cluster

Magnetism - WordPress.com
Magnetism - WordPress.com

Modelling ripple transport in two dimensions
Modelling ripple transport in two dimensions

... upper right: 30000m/s, lower left: 40000m/s, lower right: 42000m/s. ...
magnetic field lines
magnetic field lines

... currents – due to electrons spinning in atomsthese currents are always there • electromagnets: the currents flow through wires and require a power source, e.g. a battery ...
1) A rectangular conducting loop of width w, height h, and total
1) A rectangular conducting loop of width w, height h, and total

Study of Hard-and Soft- Magnetorheological Elastomers (MRE`s
Study of Hard-and Soft- Magnetorheological Elastomers (MRE`s

... properties (elastic and magnetic) across innumerable particle-matrix interfaces. These physical properties give rise to magnetic and elastic responses at particle and inter-particle levels that in turn generate forces within an MRE in response to an applied magnetic field or external load. In order ...
L 29 Electricity and Magnetism
L 29 Electricity and Magnetism

... currents – due to electrons spinning in atomsthese currents are always there • electromagnets: the currents flow through wires and require a power source, e.g. a battery ...
Discovery of Electromagnetism
Discovery of Electromagnetism

Discovery of Electromagnetism
Discovery of Electromagnetism

... named Michael Faraday discovered that the opposite is also true. A magnetic field can produce an electric current. This is known as Faraday’s law. The process by which a magnetic field produces current is called electromagnetic ...
Magnetism
Magnetism

Lecture 1510
Lecture 1510

... moment. When we apply an external magnetic field B, diamagnetic materials acquire a weak magnetic moment  which is directed opposite to B. If B is inhomogeneous, the diamagnetic material is repelled from regions of stronger field to regines of weaker B. All materials exhibit diamanetism but in para ...
5.Magnetic effects of current with answers
5.Magnetic effects of current with answers

Fine and hyperfine structure
Fine and hyperfine structure

TOPIC 6: Fields and Forces
TOPIC 6: Fields and Forces

... We can correctly predict the direction of the magnetic field using the “right hand grip rule” ...
1 - אתר מורי הפיזיקה
1 - אתר מורי הפיזיקה

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Ferrofluid



A ferrofluid (portmanteau of ferromagnetic and fluid) is a liquid that becomes strongly magnetized in the presence of a magnetic field.Ferrofluid was invented in 1963 by NASA's Steve Papell as a liquid rocket fuel that could be drawn toward a pump inlet in a weightless environment by applying a magnetic field.Ferrofluids are colloidal liquids made of nanoscale ferromagnetic, or ferrimagnetic, particles suspended in a carrier fluid (usually an organic solvent or water). Each tiny particle is thoroughly coated with a surfactant to inhibit clumping. Large ferromagnetic particles can be ripped out of the homogeneous colloidal mixture, forming a separate clump of magnetic dust when exposed to strong magnetic fields. The magnetic attraction of nanoparticles is weak enough that the surfactant's Van der Waals force is sufficient to prevent magnetic clumping or agglomeration. Ferrofluids usually do not retain magnetization in the absence of an externally applied field and thus are often classified as ""superparamagnets"" rather than ferromagnets.The difference between ferrofluids and magnetorheological fluids (MR fluids) is the size of the particles. The particles in a ferrofluid primarily consist of nanoparticles which are suspended by Brownian motion and generally will not settle under normal conditions. MR fluid particles primarily consist of micrometre-scale particles which are too heavy for Brownian motion to keep them suspended, and thus will settle over time because of the inherent density difference between the particle and its carrier fluid. These two fluids have very different applications as a result.
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