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dajugganaut
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hi, i have a question, if you could help me, that'd be great:
why does a smaller diameter coil result in a stronger electromagnet??
why does a smaller diameter coil result in a stronger electromagnet??
So if you want to study the effect of the diameter you've got to use a proper model to work it out. You can find this in most electromagnetic texts such as Griffiths.
An electromagnet is a type of magnet that is created by passing an electrical current through a wire. The wire is wrapped around a core material, such as iron, and the current creates a magnetic field that can attract or repel other objects.
An electromagnet works by using the principles of electricity and magnetism. When an electric current flows through a wire, it creates a magnetic field. The more turns of wire in the coil, the stronger the magnetic field will be. This magnetic field can be turned on and off by controlling the flow of electricity.
Electromagnets have a wide range of practical applications, including in motors, generators, speakers, MRI machines, and many types of electronic devices. They are also used in industries such as manufacturing, transportation, and healthcare.
To make a simple electromagnet, you will need a battery, a nail, and some insulated wire. Wrap the wire around the nail several times, leaving enough room at the ends to connect to the battery. When you connect the ends of the wire to the battery, the nail will become magnetized.
The main difference between an electromagnet and a permanent magnet is that an electromagnet can be turned on and off with the flow of electricity, while a permanent magnet always maintains its magnetic field. Electromagnets are also typically stronger than permanent magnets.