File
... • A magnet is an object that can attract other objects containing iron, cobalt or nickel (p. 163). • All magnets have a north-seeking and a south-seeking pole. The north pole of a magnet is the end that naturally seeks the Earth’s magnetic pole near the geographic North Pole. The other end of the ma ...
... • A magnet is an object that can attract other objects containing iron, cobalt or nickel (p. 163). • All magnets have a north-seeking and a south-seeking pole. The north pole of a magnet is the end that naturally seeks the Earth’s magnetic pole near the geographic North Pole. The other end of the ma ...
Biot-Savart Law
... Jean-Baptiste Biot & Felix Savart’s Results • dB the magnetic field produced by a small section of wire • ds a vector the length of the small section of wire in the direction of the current • r the positional vector from the section of wire to where the magnetic field is measured • I the current in ...
... Jean-Baptiste Biot & Felix Savart’s Results • dB the magnetic field produced by a small section of wire • ds a vector the length of the small section of wire in the direction of the current • r the positional vector from the section of wire to where the magnetic field is measured • I the current in ...
W10D1
... of which pass near Earth and are trapped by its magnetic field. The trapped particles follow corkscrew paths around the magnetic field lines of Earth and bounce between Earth’s magnetic poles high above the atmosphere. • Disturbances in Earth’s field often allow the ions to dip into the atmosphere, ...
... of which pass near Earth and are trapped by its magnetic field. The trapped particles follow corkscrew paths around the magnetic field lines of Earth and bounce between Earth’s magnetic poles high above the atmosphere. • Disturbances in Earth’s field often allow the ions to dip into the atmosphere, ...
PPT
... • Magnetic fields of wires, loops, and solenoids • Magnetic forces on charges and currents • Magnets and magnetic materials Sample question: This image of a patient’s knee was made with magnetic fields, not x rays. How can we use magnetic fields to visualize the inside of the body? Slide 24-1 ...
... • Magnetic fields of wires, loops, and solenoids • Magnetic forces on charges and currents • Magnets and magnetic materials Sample question: This image of a patient’s knee was made with magnetic fields, not x rays. How can we use magnetic fields to visualize the inside of the body? Slide 24-1 ...
Magnets - Bari Science Lab
... 2. Putting it in a strong magnetic field opposite its own 3. Increasing the temperature. ...
... 2. Putting it in a strong magnetic field opposite its own 3. Increasing the temperature. ...
TOPIC 6.3: Magnetic Fields and Forces
... When an electrical current flows in a piece of wire then a magnetic field is produced ______________ the wire. We can correctly predict the direction of the magnetic field using the “____________________” The ____________ points to the current The fingers show the direction of circular magne ...
... When an electrical current flows in a piece of wire then a magnetic field is produced ______________ the wire. We can correctly predict the direction of the magnetic field using the “____________________” The ____________ points to the current The fingers show the direction of circular magne ...
Chapter 5 Electrostatics
... – Magnetic force and the DISTANCE from the magnet are INVERSLEY proportional to the square of the distance – BUT the attraction is GREATEST at the POLES rather than the sides of the magnet. ...
... – Magnetic force and the DISTANCE from the magnet are INVERSLEY proportional to the square of the distance – BUT the attraction is GREATEST at the POLES rather than the sides of the magnet. ...
week10-ampere
... Calculate flux through closed surface Small magnetic material such as found in compass can indicate local direction of magnetic field ...
... Calculate flux through closed surface Small magnetic material such as found in compass can indicate local direction of magnetic field ...
Lesson 2 Magnetism Notes File
... This is because Earth acts like a giant bar __________ and is surrounded by a magnetic field that extends into space. ...
... This is because Earth acts like a giant bar __________ and is surrounded by a magnetic field that extends into space. ...
Physics 122 â Class #28 (4/28/15) â Announcements Torque on an
... where = Il2 = IA is the loop’s magnetic dipole moment. Although derived for a square loop, the result is valid for a loop of any shape: ...
... where = Il2 = IA is the loop’s magnetic dipole moment. Although derived for a square loop, the result is valid for a loop of any shape: ...
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.