PPT-Sources of Magnetic Field I

Physics 2415 Lecture 17 Michael Fowler UVa Todays Topics Forces between currents Ampères Law Fields inside wire and solenoid Magnetic Field from a Current in a Long Straight Wire The lines of magnetic force are circles around the wire direction determined by the right hand rule. In addition magnetic fields create a force only on moving charges The direction the magnetic field produced by a moving charge is perpendicular to the direction of motion The direction of the force due to a magnetic field is perpendicular to the dir The tip can be adjusted allowing the user to measure fields that are parallel or perpendicular to the long axis of the sensor The Magnetic Field Sensor can be used for a variety of interesting experiments involving magnetic fields Measure and study The tip can be adjusted allowing the user to measure fields that are parallel or perpendicular to the long axis of the sensor The Magnetic Field Sensor can be used for a variety of interesting experiments involving magnetic fields Measure and study Consider a uniform magnetic field into the board, with conducting rod moving through it:.  . + side. - side. Charges will move. If part of a circuit, can generate a current!. Which direction is the current through the resistor?. Sarah Arveson. Magnetism. A charged particle will experience a force when placed in a magnetic field and given an initial velocity. This is given by the Lorenz force. where q is the charge of the particle in Coulombs, m is the mass of the particle in kilograms, v is velocity in meters per second, and B is the magnetic field in . with qubits in diamond. Paola Cappellaro. Massachusetts Institute of Technology. Nuclear Science and Engineering Department. Promise of qt. metrology. Improved sensitivity. Entangled states. Feedback, adaptive methods. Physics 2415 Lecture 18. Michael Fowler, . UVa. Today’s Topics. More about solenoids. Biot-Savart. law. Magnetic materials. Ampère’s Law: General Case. Ampère’s Law states that for any magnetic field generated by a steady flow of electrical currents, if we take an arbitrary closed path in space and integrate around it, then . … force in . direction. … . sample volume. … magnetic . susceptibility. … magnetic field. … gradient of . the magnetic . field.  . The magnetic susceptibility . characterizes the magnetic properties of materials. : commonly referred to as NMR,. . is a technique which exploits the magnetic properties of certain nuclei to study physical, chemical, and biological properties of matter. NMR Spectroscopy. NMR History. Investigate and describe that magnets can attract magnetic materials and attract and repel other magnets.. What is Magnetism?. Let’s . Explore. What happens if you put together two magnets?. Do they become stronger together? . t. o . t. he Results . o. f Radio Astronomical . a. nd Magnetometric Observations. Ryabov M., Orlyuk M., Sukharev A., . Strakhov. Y, . Bezrukovs V., Romenets A., Sobitnyak L., Galanin V., Strakhov E., Derevyagin V., . Introduction. Solar flares occur when energy is converted into x-rays ,heat & supersonic fluid motion.. Energy is stored in magnetic filed lines.. Electric field changes connectivity of magnetic field lines and the energy is released.. Ezio. . Todesco. European Organization for Nuclear Research (CERN). Technology Department. Magnet Superconductors and Cryostat Group. All . the units will use International System (meter, kilo, second, ampere) unless specified. Open: Venus – solar wind. Closed: Venus – Venus. Draped: solar wind – solar wind. Magnetic fields guide ion and electron motions. The connectivity (topology) of these field lines helps us to understand how the upper atmosphere interacts with the solar wind..