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Research has shown that if electrons are forced to travel through vacuum,
they wind up at a different location from the place where they started.
And there's plenty of research to back that up. Until just a few years ago, this
process was going on daily in practically every American home. That's exactly
what's going on inside every old-style TV picture tube ... the one with the long
skinny neck behind it ... and also inside every "vacuum tube" in TVs and radios.
Any electronic device that you have to wait for it to "warm up" when you turn it on,
somewhere inside that device is a glass bulb, with high vacuum inside, a glowing
hot wire in it that pours out electrons, and a plate (or a screen) on the other side
of the bulb, where the electrons must flow to, through the vacuum.
What else can I help you with?
What happen when air travel through vacuum?
The vacuum becomes no longer a vacuum.
What cannot happen in a solid or through a vacuum?
convection
Why electron travel through the vacuum and not travel through the air?
Electrons can travel through a vacuum because there are no atoms or molecules to collide with, allowing them to move freely. In air, electrons collide with the molecules present, which disrupts their movement and prevents them from traveling efficiently.
What is the speed of electrons in a vacuum?
The speed of electrons in a vacuum is approximately 2.2 million meters per second.
Why does convection not happen in a vacuum?
Convection requires a medium, such as a gas or liquid, to transfer heat through the motion of the medium itself. In a vacuum, there is no medium to carry the heat, so convection cannot occur. Heat transfer in a vacuum primarily occurs through radiation.
Does current pass through vacuum?
Usually not, but a high voltage can force electrons from one side to the other. This is done in vacuum tubes. Answer2: Yes. The Electromagnetic Wave passes through vacuums and E = hf = WQf = WI, where I is a current.
What can electrons easily move through?
Electrons can easily move through conductive materials like metals, as they have a high density of free electrons that can carry electric charge. Additionally, electrons can move through vacuum or gases, and in semiconductors when they are excited to higher energy states.
Can radiation happen in a vacuum?
Yes, radiation can occur in a vacuum. Radiant energy, such as light or heat, can travel through a vacuum because it does not rely on a medium to propagate. This means that even in the absence of air or any other material, radiation can still be present.
Why is the cathode-ray tube in figure 4 connected to a vacuum pump?
A Cathode-ray tube is a vacuum that is used to get the air out. Cathode rays (electrons) cannot penetrate through any significant amount of air.
What is formed by bombarding electrons onto a metal plate inside a vacuum?
When electrons are bombarded onto a metal plate inside a vacuum, they can generate X-rays. This process is known as X-ray generation through bremsstrahlung radiation. The high-energy electrons interact with the atoms in the metal plate, causing them to emit X-rays as they decelerate.
Why vacuum is a insulator?
There are four methods by which heat transfers from one area to another. They are, evaporation, convection, radiation and conduction. With a vacuum, only radiation can transfer heat across the vacuum and because the other three forms of heat transfer are negated that makes a vacuum a good insulator. Then again, you may be referring to electricity. For electricity, negative and positive ions in a liquid or electrons in a solid, need a medium to travel through. Electrons in a solid for example need to jump from atom to atom as they move or conduct through the solid. If you have a vacuum it makes it very difficult for electrons and or ions to jump across the vacuum. They will fly across a vacuum if the voltage is high enough though. What's more is, you can help electrons to fly across a vacuum if you heat up the cathode (negative electrode) to a very high temperature, but still, you also need a high voltage to pull them across the space of the vacuum after they fly off the cathode via heating. And so, a vacuum is a very good insulator for electricity at room temperature and moderate voltages.
How do electrons microscopes work?
they used tiny pieces of glass that reflects light and make the images bigger and clearer
