File
... • Ex 1: Calculate the magnetic field strength due to a long wire that carries a current of 6.0 A at a point 1.0 cm away from the wire? [1.2 x 10-4 T] ...
... • Ex 1: Calculate the magnetic field strength due to a long wire that carries a current of 6.0 A at a point 1.0 cm away from the wire? [1.2 x 10-4 T] ...
Magnetism (High School)
... Uses for electromagnets A simple DC electric motor contains a permanent magnet, an electromagnet, and a commutator. When current flows through the electromagnet, it turns within the magnetic field of the permanent magnet, changing electricity to ...
... Uses for electromagnets A simple DC electric motor contains a permanent magnet, an electromagnet, and a commutator. When current flows through the electromagnet, it turns within the magnetic field of the permanent magnet, changing electricity to ...
Holy Cow Magnet!
... traced looks something like Figure 5, except that there will be regions where the earth’s magnetic field is influencing the compass needle as much or more than the cow magnet. ...
... traced looks something like Figure 5, except that there will be regions where the earth’s magnetic field is influencing the compass needle as much or more than the cow magnet. ...
Phet Exploration: Magnets, Transformers, and Generators
... “Gauss”) vs. distance from the end of the magnet. (There are no units given for position, so just use arbitrary units of “one compass away”, “two compasses away”, etc. Alternatively, you can tape a ruler to the screen.). Describe the shape of the graph, and the relationship between field strength an ...
... “Gauss”) vs. distance from the end of the magnet. (There are no units given for position, so just use arbitrary units of “one compass away”, “two compasses away”, etc. Alternatively, you can tape a ruler to the screen.). Describe the shape of the graph, and the relationship between field strength an ...
Document
... • This equation is known by many names, including Faraday’s Law and Lenz’s Law, depending on who you talk to. • Basically it says that a current loop without a voltage or current source can have an induced voltage if there’s a changing magnetic flux inside the loop. • Note that the direction of the ...
... • This equation is known by many names, including Faraday’s Law and Lenz’s Law, depending on who you talk to. • Basically it says that a current loop without a voltage or current source can have an induced voltage if there’s a changing magnetic flux inside the loop. • Note that the direction of the ...
SATMAGAN S135 MAGNETIC ANALYZER
... martensite in austentic steel. In both cases the same calibration curve can be used. The instrument is also suitable for measuring alpha ferrite. ...
... martensite in austentic steel. In both cases the same calibration curve can be used. The instrument is also suitable for measuring alpha ferrite. ...
Design Challenge * Electric Motor
... Take a plastic cup and poke a hole about half an inch from the top. Poke another hole directly under the first hole, but about half an inch from the bottom. Create two similar holes on the opposite side. Poke a wire through each set of holes, in one hole and out the other. Sand off the insulation a ...
... Take a plastic cup and poke a hole about half an inch from the top. Poke another hole directly under the first hole, but about half an inch from the bottom. Create two similar holes on the opposite side. Poke a wire through each set of holes, in one hole and out the other. Sand off the insulation a ...
Electricity and Magnetism - Unit 1
... All circuits need 3 basic parts. 1. Energy source- provides energy to the circuit; can be a battery, a photocell, or an electric generator at a power plant 2. Wires- connect the other parts of a circuit; made of conducting materials that have low resistance, such as copper ...
... All circuits need 3 basic parts. 1. Energy source- provides energy to the circuit; can be a battery, a photocell, or an electric generator at a power plant 2. Wires- connect the other parts of a circuit; made of conducting materials that have low resistance, such as copper ...
MASSACHUSETTS INSTITUTE OF TECHNOLOGY DEPARTMENT OF PHYSICS
... modes. Make sure to indicate the relative amplitudes of each mass for all the normal modes. Assume that the masses are constrained to move only along the springs and friction can be ignored. Hint: This problem can be done without lengthy calculations. I-2 CMB versus CB Consider the relativistic par ...
... modes. Make sure to indicate the relative amplitudes of each mass for all the normal modes. Assume that the masses are constrained to move only along the springs and friction can be ignored. Hint: This problem can be done without lengthy calculations. I-2 CMB versus CB Consider the relativistic par ...
Spin
... Total angular momentum of a particle in orbit is J = L+S Can take a magnet, hang it from a thread so that its North is pointing down. Then heat it up until it demagnetizes. As it demagnetizes, it will start spinning ! ...
... Total angular momentum of a particle in orbit is J = L+S Can take a magnet, hang it from a thread so that its North is pointing down. Then heat it up until it demagnetizes. As it demagnetizes, it will start spinning ! ...
Name: Study Guide for Investigation 4 Test Label all of the letters on
... In an electromagnet, if two rivet heads come together and they are set up the exact same way, what will happen? Do you think they will repel, attract, or cancel out the magnetism in each other? The two electromagnets will repel. Know how to read a line graph! The x and y axis will be labeled and the ...
... In an electromagnet, if two rivet heads come together and they are set up the exact same way, what will happen? Do you think they will repel, attract, or cancel out the magnetism in each other? The two electromagnets will repel. Know how to read a line graph! The x and y axis will be labeled and the ...
Adobe Acrobat file () - Wayne State University Physics and
... Magnetic objects are surrounded a magnetic field. Moving electrical charges are also surrounded by a magnetic field (in addition to the electrical field). A vector quantity: magnitude and direction… The letter B is used to represent magnetic fields. ...
... Magnetic objects are surrounded a magnetic field. Moving electrical charges are also surrounded by a magnetic field (in addition to the electrical field). A vector quantity: magnitude and direction… The letter B is used to represent magnetic fields. ...
Control of crystalline texture in polycrystalline alumina
... where is the average orientation angle of the crystals of the TOP, and Ihkl is the intensity of the (hkl) reflection. The average orientation angles of the samples prepared at B-E ⳱ 0°, 45°, and 90° were 16.52°, 45.15°, and 84.90°, respectively. This result clearly shows that the dominant crystal ...
... where is the average orientation angle of the crystals of the TOP, and Ihkl is the intensity of the (hkl) reflection. The average orientation angles of the samples prepared at B-E ⳱ 0°, 45°, and 90° were 16.52°, 45.15°, and 84.90°, respectively. This result clearly shows that the dominant crystal ...
Lecture 5 - Course Notes
... • The magnetic moments in a ferromagnet aligned parallel to each other under the influence of a magnetic field. • These moments will then remain parallel when a magnetic field is not applied (unlike the moments in a paramagnet) • Above Tc, the Curie temperature, all ferromagnetic materials become pa ...
... • The magnetic moments in a ferromagnet aligned parallel to each other under the influence of a magnetic field. • These moments will then remain parallel when a magnetic field is not applied (unlike the moments in a paramagnet) • Above Tc, the Curie temperature, all ferromagnetic materials become pa ...
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.