The magnet in an electrical fan is used in the motor to produce a rotating magnetic field. This rotating magnetic field interacts with the coils of wire in the motor, causing them to rotate and drive the fan blades. In essence, the magnet helps convert electrical energy into mechanical energy to power the fan.
In an electric fan electrical energy is transformed into mechanical energy and in loudspeaker the electrical energy is converted into sound energy.
No, a magnet should not stop a torch from working. Torches typically use batteries to power the light, and magnets do not interfere with the electrical circuit in a torch.
The magnet in a compass is a permanent magnet. It retains its magnetism without the need for an external electrical current.
To power a fan with magnets, you can use a magnetically coupled rotating system where the motion of one magnet induces motion in another magnet connected to the fan. This setup can create a magnetic field that drives the rotation of the fan blades. However, this method typically requires precise engineering and isn't commonly used for everyday fan applications due to efficiency and practicality issues.
An electrical fan typically uses electrical energy to power its motor, which then converts the electrical energy into mechanical energy to produce the movement of the fan blades through the air.
Fridge,telephone, fan
Not all fans do need a coil and magnet - there are hand fans, punkah walla fans belt driven fans (as in your car) and Stirling engine fans that I can think of that do not need a coil or a magnet. It is only electrically driven fans that require a coil and magnet because they work on the principles of electromagnetism.
A fan uses magnets by generating a magnetic field that interacts with electric current, which creates a force that drives the fan blades to rotate. This rotation creates airflow, providing cooling or ventilation in various applications. Magnets play a crucial role in converting electrical energy into mechanical energy in a fan.
Not all fans do need a magnet - there are hand fans, punkah walla fans belt driven fans (as in your car) and Stirling engine fans that I can think of that do not need a magnet. It is only electrically driven fans that require a magnet because they work on the principles of electromagnetism.
You can use it safely by not puting your hand in the blades when it is turned on.
To make a powerful magnet, use a strong magnetic material like neodymium. Shape it into a magnet by applying a magnetic field while it cools down. Finally, the magnet can be magnetized by rubbing it against a magnet or by exposing it to an electrical current.
electrical energy
In an electric fan electrical energy is transformed into mechanical energy and in loudspeaker the electrical energy is converted into sound energy.
Then the magnet not only has magnetism, but also an electrical charge.
There is a magnet in the both the microphone and speaker. They change differences in air-pressure (in the microphone) to electrical pulses, and in the speaker, they cause the cone to vibrate - creating sound.
No, a magnet should not stop a torch from working. Torches typically use batteries to power the light, and magnets do not interfere with the electrical circuit in a torch.
The magnet in a fan is typically located inside the motor. It is used in conjunction with coils of wire to create a magnetic field that drives the rotation of the fan blades.