# An electromagnet made of a bunch of capacitor plates in series?

• kmarinas86
In summary, the conversation discusses the possibility of creating an inductor using capacitors instead of traditional wire coils. This would utilize the magnetic field of displacement current rather than electron current, potentially reducing resistance and allowing for higher currents. However, constructing capacitors with large, flat plates would not be feasible and they are typically made with conductive strips and insulating film.

#### kmarinas86

Has anyone every tried to make an inductor made out of capacitors, that is to say, which uses the magnetic field of displacement current rather than that of electron current to generate magnetic fields? Let's say the gap between plates is greater than the thickness of each plate. Wouldn't most of the magnetic field be produced between the plates in this case, and not around the conducting medium of the plates themselves? Wouldn't this help to reduce the amount of resistance of plates for a given material, path diameter, and (effective) length? Would the effective resistance of such a coil be reduced signficantly? Would it be able to handle higher currents for a given diameter (of plates, rather than wires)?

Capacitors of significant value are not constructed with expansive flat plates in parallel planes. They are made using conductive strips with an insulating film and all wrapped around tightly together.

## 1. How does an electromagnet made of capacitor plates work?

An electromagnet made of capacitor plates in series works by using the principle of electromagnetic induction. When a current flows through the capacitor plates, it creates a magnetic field around the plates. This magnetic field can be controlled by varying the amount of current flowing through the plates, making it possible to manipulate the strength of the electromagnet.

## 2. What are the advantages of using capacitor plates to create an electromagnet?

One advantage of using capacitor plates to create an electromagnet is their ability to generate strong magnetic fields. Another advantage is their ability to easily switch the magnetic field on and off by controlling the current flow. Additionally, capacitor plates are inexpensive and can be easily integrated into electronic circuits.

## 3. Can an electromagnet made of capacitor plates be used for lifting heavy objects?

Yes, an electromagnet made of capacitor plates can be used for lifting heavy objects. The strength of the magnetic field produced by the capacitor plates can be increased by increasing the number of plates or the current flow, making it possible to lift heavier objects.

## 4. Are there any limitations to using capacitor plates to create an electromagnet?

One limitation of using capacitor plates is that they can only produce a magnetic field when there is a current flowing through them. This means that the electromagnet cannot be used in the absence of electricity. Additionally, the strength of the magnetic field may decrease over time as the capacitor plates discharge.

## 5. How can an electromagnet made of capacitor plates be used in everyday life?

An electromagnet made of capacitor plates can be used in a variety of everyday applications such as motors, generators, speakers, and magnetic levitation devices. It can also be used in industrial settings for lifting and moving heavy objects, and in medical devices such as MRI machines.