EOSC 310 Study Guide - North Magnetic Pole, North Pole, Triumf
Document Summary
Explain that electricity and magnetism are one phenomenon. 1) an electric current (moving charge) generates a magnetic field. 2) moving a conductor through a magnetic field generates a current. Sketch a dipole magnetic field and explain how another dipole (like a compass or a free electron) would respond within that field. Earth"s magnetic field is complex -> dominant component (90%) is a dipole field (this means that the field has two poles -> geographic north pole and magnetic north pole. ) Dipole is currently tilted relative to the rotational axis. Define declination (azimuth) and inclination (dip) of a dipole field and relate those terms to the shape of the earth"s dipole field at different locations on the planet"s surface. Angle between magnetic north and geographic north. Angle between the magnetic field and horizontal. List several reasons that the earth"s magnetic field varies over very short (seconds to days) time scales.
