Electromagnets
Yes this true!
The electromagnets that are used in junkyards are called just that, electromagnets. They are used to sort out different types of metals.
The motor of a fan works because of electromagnets, and electromagnets do work in vaccum so the fan will also work in vaccum.But, the fan will not cause any flow of anything because there is nothing to flow.
yes. to make it stronger, increase the electric flow.
Electromagnets can be turned on and off by controlling the flow of electricity, while permanent magnets have a fixed magnetic field. This makes electromagnets more versatile and suitable for a wider range of applications. Additionally, electromagnets can produce a stronger magnetic field than most permanent magnets.
Electromagnets in a fridge work by controlling the flow of refrigerant through the system. When the electromagnet is energized, it opens a valve allowing the refrigerant to flow through the system, leading to the cooling process. When the electromagnet is turned off, the valve closes, stopping the flow of refrigerant and regulating the temperature inside the fridge.
Electromagnets are the result of electricity flowing through a coil of wire, creating a magnetic field. This magnetic field can attract or repel objects and can be controlled by adjusting the flow of electricity. Electromagnets are used in various applications, such as in motors, generators, and magnetic resonance imaging.
Electromagnets are temporary magnets that require an electric current to generate a magnetic field, which can be turned on and off by controlling the current flow. Permanent magnets, on the other hand, retain their magnetism without the need for an external power source. Electromagnets are versatile and can have variable strength, while permanent magnets have a fixed magnetic strength.
Electromagnets differ from other types of magnets because they require an electric current to generate a magnetic field, whereas permanent magnets do not need electricity. Additionally, electromagnets can be turned on and off by controlling the flow of electricity, allowing for greater flexibility in their use.
Permanent magnets or electromagnets are typically used in electric motors. Permanent magnets provide a constant magnetic field, while electromagnets have a magnetic field that can be controlled by the flow of electric current.
When electricity is cut in electromagnets, the magnetic field that was being generated by the flow of current through the coil disappears. As a result, the electromagnet loses its magnetism and any magnetic materials that were being attracted or held by it will be released.
The four types of electromagnets include solenoid electromagnets, flat-faced electromagnets, cylindrical electromagnets, and horseshoe electromagnets. Each type has unique features and applications depending on their design and magnetic field strength.