# Question: Do Electric Fields Extend Through A Vacuum?

## Is artificial gravity theoretically possible?

Speculative or fictional mechanisms.

In science fiction, artificial gravity (or cancellation of gravity) or “paragravity” is sometimes present in spacecraft that are neither rotating nor accelerating.

At present, there is no confirmed technique that can simulate gravity other than actual mass or acceleration..

## Are there electric fields in space?

The dust particles in space are thought to be 2 to 200 nanometers in size, and many of them are also electrically charged, along with the ions and electrons. … The existence of charged particles and electromagnetic fields in space is accepted in both the Gravity Model and the Electric Model.

## Can lightning exist in a vacuum?

Lightning as we know it in air cannot happen in vacuum because lightening depends crucially on the generation of positive ions and negative electrons by ionization of molecules of the air in high electric fields (and eventually high temperatures) and the ensuing impact ionization typical for a gas discharge.

## Can electricity be transmitted through the air?

Electricity can indeed be transferred through the air – but standard temperature and pressure air has very high resistance to the flow of electric current. … Generally, passing energy through a non-conductor like air is best done by converting the electrical energy to something that the air does not impede.

## Do electric motors work in space?

Yes motors do work in space. But they require special arrangements and design parameters to work in space. The motors working on earth can be directly subjected into space environment as the pressure and temp in space will kill or blow up the motor immediately.

## Is there lightning in space?

It’s like space lightning. … According to PopSci, scientists at the University of Toronto have discovered the strongest current to date in space about 2 billion light years from Earth.

## How electric field is generated?

Electric fields originate from electric charges, or from time-varying magnetic fields. … The electric field is defined mathematically as a vector field that associates to each point in space the (electrostatic or Coulomb) force per unit of charge exerted on an infinitesimal positive test charge at rest at that point.

## How does electricity work in a vacuum?

Electricity is a flow of electrons. Electrons can flow across a vacuum. … In a CRT the cathode is heated, which gives the electrons the energy they need to escape the cathode. A large electric field then accelerates the free electrons across the vacuum and onto a target (screen).

## Does electricity exist in space?

Electricity doesn’t exist in space in the usual way we think about it, namely electrons flowing in a wire. But that’s only because space normally doesn’t have wires. … These charged electrons and ions interact with each other (opposite charges attract) and with the magnetic field of the Sun.

## Does electricity need a medium?

Electricity is flow of electrons. Electrons can flow in vaccum too. So electricity doesn’t require medium. But it becomes easier to handle and manipulate electricity if it is flowing through a medium ( e.g. copper wire) for us.

## Can air be used to generate electricity?

Scientists are working on the concept using materials known as piezoelectrics which convert the energy of motion into electricity. The devices, which are just an inch long, could be mounted on a car roof or aircraft fuselage.

## How many miles per hour does electricity travel?

This energy travels as electromagnetic waves at about the speed of light, which is 670,616,629 miles per hour,1 or 300 million meters per second. 2 However, the electrons themselves within the wave move more slowly. This concept is known as drift velocity.

## Do turbines work in space?

Solar Sails are a great, low-impact way of driving your spacecraft. Whilst wind turbines are a low impact way of collecting power from the wind, however, they only work when the wind is blowing.

## Do electromagnets work in space?

Magnets can be used in space. … One class of magnets, called electromagnets, does need electricity to work. However, if you could run an electric current through one in space, it would still work.

## Do electric fields exist in a vacuum?

No, an electric charge and current cannot exist in a vacuum. All charge-carriers are either massive particles or ‘holes’ in a crystal of massive particles (atoms).

## Can electricity travel through a vacuum?

Even at low voltages, electricity can in fact travel through a perfect vacuum. At low voltages though electrons flow invisible. A vacuum arc can occur if the electric field is sufficient to cause field electron emission.

## Is vacuum the best electrical insulator?

Since electric currents are made up with a flow of ionized particles (electrons, ionized atoms), as a consequence in a perfect vacuum no electric conduction current can exist; actually, a vacuum is utterly the best insulator you can get, even in the incomplete form of the high-grade vacuum in electronic vacuum tubes …

## How fast does electricity travel in a vacuum?

Light travels through empty space at 186,000 miles per second. The electricity which flows through the wires in your homes and appliances travels much slower: only about 1/100 th the speed of light.