The permanent magnetism of a vessel may change in strength due to().
The permanent magnetism of a vessel may change in strength due to().
Permanent magnetism is caused by().
This induced magnetism()the permanent magnetism already present in the ship.
The permanent magnetism of a vessel may change in polarity due to().
What is used to correct for both induced and permanent magnetism,and consequently must be readjusted with radical changes in latitude().
Permanent magnetism is found in().
At the magnetic equator there is no induced magnetism in the vertical soft iron because().
The magnetism in the various structures of a ship changing as a result of cruising,vibration,or aging is termed().
Induced magnetism is found in().