PPT-MAGNETISM BACKGROUND Man has been fascinated by magnetic properties since 600 B.C. (One

Magnes who discovered that the iron tip on his staff was mysteriously attracted to a rock This rock was a naturally occurring magnetic rock called lodestone Show students a piece of magnetite and show them that a small magnet is attracted to it. Magnetic Properties of Materials 1.Magnetisation of materials due to a set of isolated atoms a) Diamagnetism -magnetic moment of filled shells of atoms. Induced moment opposes applied fieldb) Paramag Often cheap relative to other geophysical techniques.. Can be measured with ground-based or airborne equipment.. Not usually very useful when looking at sedimentary structures. (We’ll see why later!). Magnets and magnetic fields. Magnets and magnetic fields. Magnets got their name from the region of Magnesia, which is now part of modern-day Greece.. The first naturally occurring magnetic rock, called . What is a magnet?. Magnet. Permanent Magnets. By shape. Material. Temporary magnets?. Electromagnets. 1. ALL magnets have NORTH and south poles.. 2. When freely suspended, all magnets point to the north- Directional property.. SrIr. 1−x. Sn. x. O. 3. indicated this material was a Slater insulator. This is a rare insulator where the magnetism controls the conduction of electrons. The behavior can be controlled by altering the Sn content.. EQ: Which similarities can be used to classify substances on the basis of their conductivity and magnetic properties?. Agenda. Bell Ringer. PowerPoint with . Cornell . Notes. Gizmo Snippet . Brain Pop: Magnetism with Quiz. Part 5 Electricity and Magnetism. © . G. . Dzyubenko. 2016. Chapter 24 Magnetism. Ch24: Magnetism. 2. This lecture will help you understand:. Magnetic . Force. Magnetic Poles. Magnetic . Field. Magnes. who discovered that the iron tip on his staff was mysteriously attracted to a rock.) This rock was a naturally occurring magnetic rock called lodestone. . Show students a piece of magnetite, and show them that a small magnet is attracted to it. c. Investigate applications of magnetism and/or its relationship to the movement of electrical change as it relates to. Electromagnets. Simple . motors. Permanent . magnets. A. Magnetic . Forces. 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? . Magnetism from electricity. In 1820, Danish scientist . Hans . Christian . Oersted. discovered accidently that when electricity passed through a wire…a magnetic field was created. Which way would the compass needles point if we placed them around the wire?. material due to the arrangement of its atoms, particularly its electrons.. Lik. e poles will repel, opposite poles will attract.. Magnetic field lines describe the structure of magnetic fields in three dimensions.. ?. Why does a magnet exert a force on distant magnetic materials?. Why are some materials magnetic but others are not?. How do magnetic domains model magnetic behavior?. Magnetism. Copyright © McGraw-Hill Education. :. II. B.. Sc., . PHYSCIS. SUBJECT- INCHARGE. :. Mrs.. T. KAVITHA. SUBJECT NAME. :. ELECTRICITY. MAGNITISM . & . ELECTRO MAGNETISM. SUBJECT CODE. :. 16SCCPH4. TOPIC. :. MAG. NETIC MATERIALS. IDHAYA .