lecture1423813661
... In order to discuss the boundary conditions, we first consider the field behavior in some common material media In general, based on the electric properties, materials can be classified into three categories: conductors, semiconductors and insulators (dielectrics). In conductor , electrons in the ou ...
... In order to discuss the boundary conditions, we first consider the field behavior in some common material media In general, based on the electric properties, materials can be classified into three categories: conductors, semiconductors and insulators (dielectrics). In conductor , electrons in the ou ...
view file - Dr. Ahmed ElShafee
... Magnetic Field of a Solenoid and a Toroid • (a) In the space between the conductors, apply Ampere’s law for a circular path around the center wire, magnetic field lines will be concentric circles centered on the center of the wire, and the magnitude • (b) Outside the cable, we can draw a similar ...
... Magnetic Field of a Solenoid and a Toroid • (a) In the space between the conductors, apply Ampere’s law for a circular path around the center wire, magnetic field lines will be concentric circles centered on the center of the wire, and the magnitude • (b) Outside the cable, we can draw a similar ...
Propagation of cosmic rays in the solar wind
... that the observedtime-intensity profile could be accountedfor quantitatively by equationI with appropriateparameters.Much of this very early discussionis quite close•o presentideas.In particular, the ide• that the exponentialdecay ...
... that the observedtime-intensity profile could be accountedfor quantitatively by equationI with appropriateparameters.Much of this very early discussionis quite close•o presentideas.In particular, the ide• that the exponentialdecay ...
physics-xii-2 - library kv mahasamund
... Potentiometer - principle and its applications to measure potential difference and for comparingEMF of two cells; measurement of internal resistance of a cell. Unit III: Magnetic Effects of Current and Magnetism Concept of magnetic field, Oersted's experiment. Biot - Savart law and its application ...
... Potentiometer - principle and its applications to measure potential difference and for comparingEMF of two cells; measurement of internal resistance of a cell. Unit III: Magnetic Effects of Current and Magnetism Concept of magnetic field, Oersted's experiment. Biot - Savart law and its application ...
Faraday and the Electromagnetic Theory of Light
... most important contribution and was described by Einstein as the great change in physics because it provided electricity, magnetism and optics with a common framework of physical theories. However, Faraday’s lines of force were not accepted until several years later when James Clerk Maxwell entered ...
... most important contribution and was described by Einstein as the great change in physics because it provided electricity, magnetism and optics with a common framework of physical theories. However, Faraday’s lines of force were not accepted until several years later when James Clerk Maxwell entered ...
Nature of the Induced E
... (a) The e.m.f. induced in the coil is an alternating one, since it is alternately positive and negative in direction. (b) The e.m.f. undergoes one complete "cycle" of changes in the time taken by the coil to make one complete revolution. This is shown by the fact that the graph begins to repeat itse ...
... (a) The e.m.f. induced in the coil is an alternating one, since it is alternately positive and negative in direction. (b) The e.m.f. undergoes one complete "cycle" of changes in the time taken by the coil to make one complete revolution. This is shown by the fact that the graph begins to repeat itse ...
Higher Order Drifts and the Parallel Equation of Motion
... and realize that in each one, our implicit “recipe” was to look for a reference frame moving with velocity V in which, in a plane perpendicular to B, the motion-induced electric field force qV B cancels the phase-average of the resultant of all other forces acting on the particle as it makes one c ...
... and realize that in each one, our implicit “recipe” was to look for a reference frame moving with velocity V in which, in a plane perpendicular to B, the motion-induced electric field force qV B cancels the phase-average of the resultant of all other forces acting on the particle as it makes one c ...
Ultra-high-energy collisions of particles in the field of near
... are restricted by the gravitational redshift effect as demonstrated in [18]. On the other hand, both these efficiencies can remain large in the field of nearextreme superspinning Kerr geometry, if the collisions occur at r = M and close enough to the equatorial plane of the geometry [86]. For such a ...
... are restricted by the gravitational redshift effect as demonstrated in [18]. On the other hand, both these efficiencies can remain large in the field of nearextreme superspinning Kerr geometry, if the collisions occur at r = M and close enough to the equatorial plane of the geometry [86]. For such a ...
Sardinia_SA - Mullard Space Science Laboratory
... much stronger than the direct emission, in contradiction to the basic model for magnetically confined accretion • One possibility has been that the accretion flow is not smooth, known as “blobby” accretion: – gives rise to flares in light curve (c.f. VV Pup) – blobs bury themselves deep in the white ...
... much stronger than the direct emission, in contradiction to the basic model for magnetically confined accretion • One possibility has been that the accretion flow is not smooth, known as “blobby” accretion: – gives rise to flares in light curve (c.f. VV Pup) – blobs bury themselves deep in the white ...
Lecture 16 - The Local Group
... i =ε According to Maxwell’s equations: dt • A point charge at rest produces E but not B. • A point charge moving with a constant speed produces E & B. • For a point charge to produce and EM wave, the charge must accelerate. ...
... i =ε According to Maxwell’s equations: dt • A point charge at rest produces E but not B. • A point charge moving with a constant speed produces E & B. • For a point charge to produce and EM wave, the charge must accelerate. ...
A single picture for solar coronal outflows and radio noise storms
... above regions of strong magnetic field (sunspots umbrae and plage); c) originating at low heights, but with a large spatial expansion into the corona; d) located in regions where typical electron densities are two orders of magnitude smaller than the typical densities (109 cm−3 ) of the hot loops in ...
... above regions of strong magnetic field (sunspots umbrae and plage); c) originating at low heights, but with a large spatial expansion into the corona; d) located in regions where typical electron densities are two orders of magnitude smaller than the typical densities (109 cm−3 ) of the hot loops in ...
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.