Workshop Attendee Notes
... 4) If your loop does not start rotating, you should make sure that the insulation is totally scratched off from one half of the wire. In this case, use the scissors again to scratch away at the wire to make sure the wire is totally exposed over one half and still insulated over the other half. You m ...
... 4) If your loop does not start rotating, you should make sure that the insulation is totally scratched off from one half of the wire. In this case, use the scissors again to scratch away at the wire to make sure the wire is totally exposed over one half and still insulated over the other half. You m ...
The Earth`s Magnetic Field
... old, and this decaying current model for the origin of the earth’s magnetic field is incompatible with that timescale, their preferred model is a self-sustaining dynamo. In their model, the earth’s rotation and convection circulates the molten, liquid iron/nickel in the outer core, thus producing an ...
... old, and this decaying current model for the origin of the earth’s magnetic field is incompatible with that timescale, their preferred model is a self-sustaining dynamo. In their model, the earth’s rotation and convection circulates the molten, liquid iron/nickel in the outer core, thus producing an ...
Physical Science: Unit 8: Sound
... • The force between two charges depends on the amount of charge and the distance between them. • The amount of charge is shown by the number of plus (+) signs. • If the amount of charge increases, the force of attraction or repulsion between them increases. • If the distance between the charges incr ...
... • The force between two charges depends on the amount of charge and the distance between them. • The amount of charge is shown by the number of plus (+) signs. • If the amount of charge increases, the force of attraction or repulsion between them increases. • If the distance between the charges incr ...
Engineering with Electricity and Magnetism: A Guided
... As part of the high-school outreach effort within our Electrical and Computer Engineering department, we have developed a guided-inquiry exercise which is designed to enhance the understanding of these two fundamental laws. This hands-on exercise enables high-school students to discover through thei ...
... As part of the high-school outreach effort within our Electrical and Computer Engineering department, we have developed a guided-inquiry exercise which is designed to enhance the understanding of these two fundamental laws. This hands-on exercise enables high-school students to discover through thei ...
Modeling Magnetic Torque and Force, J. Abbott
... parameters such as permeability and susceptibility are relatively constant and of practical use if the applied field is weak, but become field-dependent for stronger fields. The magnetization of a body has a saturation limit, and after this limit has been reached, the relationship between the applie ...
... parameters such as permeability and susceptibility are relatively constant and of practical use if the applied field is weak, but become field-dependent for stronger fields. The magnetization of a body has a saturation limit, and after this limit has been reached, the relationship between the applie ...
experimental competition
... evaluated (“Page total”); leave the “Problem” field blank. The students should start with a new page for each section. It is also useful to write the number of the section you are answering at the beginning of each such section. If you use some sheets for notes that you do not wish to be evaluated b ...
... evaluated (“Page total”); leave the “Problem” field blank. The students should start with a new page for each section. It is also useful to write the number of the section you are answering at the beginning of each such section. If you use some sheets for notes that you do not wish to be evaluated b ...
What is a magnet? - Northern Highlands
... is brought near a steel paper clip, magnetic domains that attract the magnet grow and domains that repel the magnet shrink. The paper clip quickly builds a magnetic field that attracts the magnet, no matter which pole is used (Figure 16.10). When the magnet is pulled away the domains tend to go back ...
... is brought near a steel paper clip, magnetic domains that attract the magnet grow and domains that repel the magnet shrink. The paper clip quickly builds a magnetic field that attracts the magnet, no matter which pole is used (Figure 16.10). When the magnet is pulled away the domains tend to go back ...
Teaching Faraday`s law of electromagnetic induction in
... points B, P, and C, and might consider the area change of the circuit as caused by the movement of these lines: the area S1 + S2 共between the dashed lines to the positions P⬘ and P⬙兲. It is stated that there is “a somewhat unusual situation in which the flux through a circuit 共again in the sense of ...
... points B, P, and C, and might consider the area change of the circuit as caused by the movement of these lines: the area S1 + S2 共between the dashed lines to the positions P⬘ and P⬙兲. It is stated that there is “a somewhat unusual situation in which the flux through a circuit 共again in the sense of ...
Lesson 11. Topic “ Magnetism” Grammar material: The Present
... and the electric current: on the one hand magnetism is produced by the current and on the other hand the current is produced from the magnetism. Magnetism is mentioned in the oldest writings of man. Romans, for example, knew that an object looking like a small dark stone had the property of attracti ...
... and the electric current: on the one hand magnetism is produced by the current and on the other hand the current is produced from the magnetism. Magnetism is mentioned in the oldest writings of man. Romans, for example, knew that an object looking like a small dark stone had the property of attracti ...
2 Solar magnetic fields. - High Altitude Observatory
... tried to understand the physical problems presented by modern solar observations, and have offered some short courses and lectures which attempt to identify some elementary problems. By elementary, I do not mean “simple”, but rather those building blocks of a complex nonlinear system that a graduate ...
... tried to understand the physical problems presented by modern solar observations, and have offered some short courses and lectures which attempt to identify some elementary problems. By elementary, I do not mean “simple”, but rather those building blocks of a complex nonlinear system that a graduate ...
Geographical and moon phase relationship of the UV
... At the Earth atmosphere, Ultraviolet (UV) transient events, can occur as a result of a number of phenomena [1]. Fluorescence by incoming charged particles when they pass through the atmosphere is one of them. Other atmospheric phenomena as Aurorae and thunderstorms also generate UV light, commonly n ...
... At the Earth atmosphere, Ultraviolet (UV) transient events, can occur as a result of a number of phenomena [1]. Fluorescence by incoming charged particles when they pass through the atmosphere is one of them. Other atmospheric phenomena as Aurorae and thunderstorms also generate UV light, commonly n ...
MAGNETISM
... Magnets exert forces on one another. They are similar to electric charges, for they can both attract and repel without touching, depending on which end is held near the other. Also, like electric charges, the strength of their interaction depends on the distance of separation of the two magnets. Whe ...
... Magnets exert forces on one another. They are similar to electric charges, for they can both attract and repel without touching, depending on which end is held near the other. Also, like electric charges, the strength of their interaction depends on the distance of separation of the two magnets. Whe ...
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.