Notes and Study material for Exams
Current Electricity Electric current is the rate of flow of electric charge through a conducting medium with respect to time. It is caused by drift of free electrons through a conductor to a particular direction.Charges in motion constitute an electric current. Such currents occur naturally in many situations. Lightning is one such phenomenon in which … Read more
Magnetism Magnetism is one aspect of the combined electromagnetic force. It refers to physical phenomena arising from the force caused by magnets, objects that produce fields that attract or repel other objects. All materials experience magnetism, some more strongly than others. Permanent magnets, made from materials such as iron, experience the strongest effects, … Read more
–2/”>a >DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”> When a DC current passes through a long straight conductor a magnetising force, H and a static Magnetic Field, B is developed around it If the wire is then wound into a coil, the magnetic field is greatly intensified producing a static magnetic field around itself … Read more
The following are subtopics of magnetic field: Magnetic field lines Magnetic field strength Magnetic flux Magnetic dipole moment Magnetic field of a current loop Magnetic field of a solenoid Magnetic field of a bar magnet Magnetic field of the Earth Magnetic field of the Sun Magnetic field of stars Magnetic field of galaxies Magnetic field … Read more
Here is a list of subtopics without any description for Geomagnetism: Anomalous magnetic fields Earth’s Magnetic Field Geomagnetic field reversal Geomagnetic storms Magnetopause Magnetosphere PaleomagnetismPaleomagnetism Solar wind Space weather Geomagnetism is the study of the Earth’s magnetic field. The Earth’s magnetic field is a complex field that is generated by the movement of molten iron … Read more