Turn is a type of electrical circuit that has several functions focused mainly on the production of magnetic field, electricity and mechanical energy. It is a component of electric power generators, as well as electric motors, transformers, inductors and various other devices. https://www.mrosupply.com/popular_products/1hp-56-motors/ A detail that we must stress about the loop is that when it presents the pole opposite that of the magnet to which it is attached the existing force will be of attraction and the movement of the loop will be attenuated, and may even result in the end of the movement. To prevent the engine from stopping, use one end of the fully scraped loop where the chain can pass and the other half scraped so that the chain will only pass through the end. Thus, the loop will move because of the magnetic force of repulsion between the magnets.
The electric current is a flow of electrons that circulates through a conductor when there is a potential difference between its ends, and this potential difference is called voltage. The ease or difficulty with which the electric current will cross a conductor is known as resistance. These three concepts: current, voltage and resistance are related to each other so that, knowing two of them, one can calculate the third through Ohm’s Law.