Which electromagnet are will produce the strongest magnetic force

The strength of an electromagnet depends on several factors including the number of turns in the coil, the current flowing through the coil, the type of core material used, and the size and shape of the coil. Generally, increasing the number of turns in the coil and the current flowing through it will increase the magnetic force produced. Additionally, using a core material with high magnetic permeability, such as iron or ferrite, can also increase the strength of the electromagnet.