no
The compass relies on earth's magnetic field to orient itself. The magnetic field runs from the north pole to the south pole. The compass will orient itself with whichever pole it's closest to.
The field magnet consist pole shoes. The pole shoes spread out the flux in the air gap and supports the exciting coil.
False.
False.
north and south pole
anywhere
in the pole vault
no
At the north pole
north pole and south pole
When the north pole becomes the south pole.
At the north pole
near pole.
The magnetic field of a magnet is strongest right at the poles, both the north pole and the south pole (which are equally strong).
Among the field lines generated by a circle current, the one which passes the center is not closed. --JF Hu
Earth's magnetic field (and the surface magnetic field) is approximately a magnetic dipole, with the magnetic field S pole near the Earth's geographic north pole (see Magnetic North Pole) and the other magnetic field N pole near the Earth's geographic south pole (see Magnetic South Pole). This makes the compass usable for navigation. The cause of the field can be explained by dynamo theory. A magnetic field extends infinitely, though it weakens with distance from its source. The Earth's magnetic field, also called the geomagnetic field, which effectively extends several tens of thousands of kilometres into space, forms the Earth's magnetosphere. A paleomagnetic study of Australian red dacite and pillow basalt has estimated the magnetic field to be at least 3.5 billion years old