PHY 2020 Lecture Notes - Lecture 34: Geomagnetic Pole
Document Summary
To observe and visualize magnetic fields and forces. To study the force on a charged particle in a magnetic field. To evaluate the magnetic force on a current-carrying conductor. To determine the force and torque on current-carrying loop of wire (the dc motor) in a magnetic field. To study the fields generated by long, straight conductors. To study the fields generated by conductor in loop (forming the solenoid) This field is not very strong but it is consistent (an convenient) The geomagnetic north pole is actually a magnetic south (s) pole- it attracts the n pole of a compass. Magnetic field lines show the direction a compass would point at a given location. The earth"s magnetic field has a shape similar to that produced by a simple bar magnet (although actually it is caused by electric currents in the core). The earth"s magnetic axis is offset from its geographic axis.
