Hi i dont know i am trying to look for the answer
The most common way is with a magnet and a coil of wire. Have either the magnet or the coil (it doesn't matter which) fixed in place and the other one attached to a membrane that will vibrate with the sound. When a magnet moves past a coil of wire, it causes an electric current in the wire.
One way to increase the amount of electric current produced by a magnet is to increase the strength of the magnetic field. This can be done by using a stronger magnet or increasing the number of turns in the wire coil. Another way is to increase the speed at which the magnetic field changes, which can be achieved by moving the magnet or the wire coil faster.
Electric current involves the flow of electrically charged particles, such as electrons, through a conductor. Magnet current, on the other hand, refers to the flow of magnetic field lines through a material, typically induced by an electric current passing through a wire. Magnet current is associated with the movement of magnetic fields, whereas electric current is associated with the movement of electric charges.
Sort of... In permanent magnets, magnetism is due to the movement of electrons around their atoms. Each atom is a small magnet, and there are more atoms aligned in one direction than in the other. If you consider the electron orbiting around the atom, or "spinning around its axis" as a "current", then yes.
An electric motor typically uses one electromagnet and one permanent magnet to create a magnetic field that interacts to produce motion. The electromagnet's field can be easily controlled by varying the electric current, allowing the motor's speed and direction to be changed. The permanent magnet provides a fixed magnetic field that interacts with the variable field of the electromagnet to generate the rotational force needed for the motor to work.
If you are referring to a magnet as an object that possesses a permanent magnetic field, then yes. There are three circumstances where magnetic fields exist, but not as a result of a permanent magnet. 1. Electric current causes a magnetic field. Thus, any wire carrying a current or even a current without a wire (like a lightning bolt) will be surrounded by a magnetic field. Since electric current is made up of moving electric charges, it is actually true than any moving electric charge creates a magnetic field. 2. It is difficult to observe outside of a scientific laboratory, but when there is an electric field that is varying in time, that creates a magnetic field. Though not easy to demonstrate directly, this turns out the physical phenomena the allows the creation of elecrtromagnetic waves, e.g. like the light we see with our eyes. 3. Thirdly, one can cause materials that are not able to work as permanent magnets to act as temporary magnets. This is the basis for electromagnets. A steel or iron core with an electric current running through a coil surrounding the core will produce a magnetic field. If you simply cut off the power source, the electric current will no longer flow through the coil. No electric current, no magnetic field. When a non-permanent magnet is created, the magnetic field it produces is just the same as the magnetic field of a permanent magnet, until the source is removed and the field disappears. All of these matters together are an essential part of the basics of electromagnetism which describes how and why the phenomena work.
No. Your magnet will fight the electricity.
You can induce a larger electric current by either increasing the strength of the magnetic field or increasing the speed at which the magnet moves through the coil of wires. Both of these factors contribute to the rate at which magnetic flux changes, resulting in a larger induced current in the coil.
When an electric current flows, electrons are being transferred from one atom to another. This electron transfer creates a polarity in the atom, which translates to a magnetic field.
The bar magnet is what is termed a permanent magnet . This means that it is "always on" and can be used to do things like pick up paper clips. The electromagnet is created by winding a coil of wire about a ferromagnetic core and running a direct current through that coil. Only when the current is flowing will the electromagnet be operating. With the current switched off, the magnetic field around the coil of wire disappears, and the power of the electromagnetic disappears as well.There are some "fine points" associated with a further extension of this post, but the basic answer to the question is as written.A bar magnet is made from magnet materials and has a magnetic field at all times. An electromagnetic is not naturally magnet and only has a magnetic field when electricity is passed through it.
There is really no way to make energy - do some reading about the Law of Conservation of Energy for more details. With a magnet, you can convert one type of energy into another - mechanical energy into electrical energy, or electrical energy into mechanical energy.
An magnet is a material or object that creates a magnetic field. Bar magnets constantly create their magnetic field, while electromagnets are coils that only produce a magnetic field when an electric current passes through it.