👉 A magnetotelegraph is a type of electromagnet that generates an electric current when it comes into contact with magnetic fields. It is used to measure the strength and direction of the magnetic field around an object, such as a magnet or other electrical device. The current generated by the magnet can be used to determine the strength of the magnetic field at different points along the magnet's path. This technique is commonly used in navigation devices, where it helps sailors and pilots navigate through the ocean using the direction
