Questions

Can you generate a magnetic field?

Can you generate a magnetic field?

No, it is not possible to create magnetic waves without an electric field being present. Electric fields are created by electric charges. For instance, if you statically charged up a balloon by rubbing it on your hair, the balloon creates an electric field. Magnetic fields are created by magnets.

Is it possible to manipulate magnetic field?

In recent years, metamaterials have enabled scientists to manipulate magnetic fields in unexpected ways, such as creating a magnetic cloak that can make an object magnetically undetectable and magnetic wormholes, which transport a magnetic field from one point in space to another.

How can we make magnetic field at home?

By simply wrapping wire that has an electrical current running through it around a nail, you can make an electromagnet. When the electric current moves through a wire, it makes a magnetic field. If you coil the wire around and around, it will make the magnetic force stronger, but it will still be pretty weak.

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Can magnetic fields cancel out?

Magnetic fields can cancel each other out. This is owed to the factor that magnetic fields are vector quantities. If the magnitude of two fields is equal, but the pull is in opposite directions, the net result is that the magnetic fields will cancel out.

Can we create a magnetic field on Mars?

Unfortunately, we can’t just recreate Earth’s magnetic field on Mars. Our field is generated by a dynamo effect in Earth’s core, where the convection of iron alloys generates Earth’s geomagnetic field. The interior of Mars is smaller and cooler, and we can’t simply “start it up” to create a magnetic dynamo.

Can we make a magnetic field on Mars?

First we would have to somehow liquefy the outer core of the planet. Then the planet’s own rotation would create a dynamo and generate a magnetic field like Earth’s. This could be done using an extremely large nuclear bomb which would be placed near the core of the planet.

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Is it possible to create a magnetic field in empty space?

The strength of a magnetic field decreases with distance from the magnet, and a theorem proven in 1842, Earnshaw’s Theorem, says that it’s not possible to create a spot of maximum magnetic field strength in empty space.

How do you create a magnetic field?

To create the field from a distance, Mach-Batlle and her team created a hollow cylinder made of about 20 wires surrounding one long interior wire. When current runs through these wires, it creates a magnetic field that looks the same as if the long interior wire were actually outside the device.

Is it possible to redirect a magnetic field?

I know that magnetic fields can be redirected, but… given a situation where you have static magnetic field over a large area, and you want to quickly change the magnetic field strength. Is it feasible to redirect nearby fields and curve the field towards a single point, thus increasing flux density and strength?

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Is it possible to generate a magnetic field outside the vaccuum?

Since these can be self-propagating in the vaccuum, and one could theoretically focus a magnetic field outside of a source. Technically, there would be far-field (radiation) in such cases, but not all cases. For example, Schott in 1933 discovered non-radiating solutions for spherically charged objects rotating at relativistic velocities.