Describe how turning off the electric current in an industrial magnet affects its magnetic field.
Thanks!
It would make it stronger
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When an electric current flows through a coil of wire, it creates a magnetic field around the coil. This coil is known as an electromagnet, and it can be found in many industrial applications like magnetic separators, cranes, and MRI machines. The strength of the magnetic field generated by the electromagnet is directly proportional to the amount of electric current passing through it.
Now, when the electric current is turned off in an industrial magnet, the magnetic field it produces gradually weakens. This happens because the flow of electric current is the source of the magnetic field. As the current stops, the magnetic field dissipates over time, returning to a state of no magnetism.
To better understand this concept, we can look at Faraday's Law of Electromagnetic Induction. According to this law, a changing magnetic field induces an electric current in a conductor and vice versa. So, when the electric current is switched off, the changing magnetic field induces an electric current in the opposite direction, causing the magnetic field to decay.
The rate at which the magnetic field weakens depends on several factors, such as the resistance of the wire, the number of turns in the coil, and the properties of the surrounding materials. In some cases, auxiliary systems might be used to rapidly dissipate the remaining magnetic field, especially in applications where quick changes to the magnetic field are required.
In summary, turning off the electric current in an industrial magnet gradually weakens the magnetic field it produces, as the source of the magnetism is the flow of electric current through the coil of wire.