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If an electron is at rest in an electric field can it be set into motion by the electric field?
Wiki User
∙ 14y ago
Yes. When a magnetic field is moving with respect to the electron, a force will be exerted on the electron.
This is a fundamental relationship. One of the four basic forces in the universe is the electromagnetic force. Not the electric force and not the magnetic force - the electromagnetic force. Let's check out a few fundamental ideas.
The movement of any charged particle will create a magnetic field around its path of travel. No exceptions. And any magnetic field is the result of some kind of movement of charged particles. All magnetic fields result from some kind of uniform charge movement.
There is a bottom line here. Wave a magnet at any stationary charged particle and it will move if it can. This basic idea is behind all power generation and electric current flow. All of it. Imagine a world where charged particles did not respond to magnetic fields and you'd be in a world with no cell phones, no TV or videos, no computers, no electric lights and refrigerators, and almost nothing we call "technology" today.
A link is provided to the Wikipedia article on electromagnetics.
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoNO a constant magnetic field can not make a proton accelerate.Because moving charges produce electric and magnetic Field. When the field is stationary there is no acceleration
from the formula F=Bqv sin(theta)
when v=0
automatically force becomes zero and the particle cant move.
I hope that this would help u
Wiki User
∙ 11y agoNo, a constant magnetic field cannot set a proton at rest into motion.
Equation: FB= qvBsin(theta)
The proton is at rest, so therefore its velocity is 0 m/s, thus causing the force applied by the magnetic force to be 0 N. Which will ultimately cause the proton to not move, despite the constant magnetic field.
Wiki User
∙ 14y agoYes it can be set into motion by an electric field.
Wiki User
∙ 10y agono look at Fb=qvBsin(theta)
Wiki User
∙ 14y agono
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Which of the subatomic particle is the lightest?
Electron, lightest stable subatomic particle known. It carries a negative charge, which is considered the basic unit of electric charge. The rest mass of the electron is 9.109 × 10−31 kg, which is only 1/1,840the mass of a proton. An electron is therefore considered nearly massless in comparison with a proton or a neutron, and the electron mass is not included in calculating the mass number of an atom.
When is the mass of an electron regarded as zero?
The mass of an electron is regarded as zero when it is at rest. The mass of an electron or any particle is calculated by using its momentum and its energy. The mass of an electron is related to its momentum which is zero when the electron is not moving. So when the electron is at rest its momentum is zero and thus its mass is zero. When an electron is moving its mass is no longer zero as its momentum is not zero. It is calculated by using the following equation: Mass = Energy / (Speed of Light)2The mass of an electron increases as its energy increases and it increases even more when it is moving at a higher speed. So when the electron is at rest and its momentum is zero its mass is also zero.
What is the real mass of an electron?
Basically, the rest mass of an electron is the amount of energy in the mass a single electron has when it is not in motion and is the only mass in a system. Make sense? No? Let's back up a bit and then come forward. When anything is moving, it has more energy than it had when it was standing still. And when an electron is moving, the electron has more mass because of a consequence to Albert Einstein's E=mc2. We don't see this relatavistic mass increase until we see a velocity approaching the speed of light, but it appears at any non-zero velocity. It's just that it's really, really tiny until the electron is moving at maybe 90% or more of the speed of light. So if we look at an electron that is just hanging in space by itself, we can make a statement about its mass, and that mass will be the same, will be invarient, from one inertial frame to another. It will be the same from place to place. It's mass will be the same, and that's were we get the term invarient mass or rest mass. Let's go on one more step. If we consider the equation we mentioned, the one that says E=mc2 as stated above, that's the so-called mass-energy equivalence. It states that energy (E) is equal to the mass (m) times the square of the speed of light (c, and its square, c2). If we consider the rest mass, and then take that mass and see how much energy that it can be converted into, we'll have the rest mass energy. And now we're back where we started and have brought you up to speed with the background physics. (We left out those pesky manifold things and stuck to the basics.) Need more information? A link is provided below.
How many electrons does niobium have?
Niobium only seems to have one valence electron. Why it doesn't have two like the rest of the transition metals is beyond me.
What is the size of protons compared to electrons?
Protons have a diameter of 1.6 to 1.7×10−15 meters. The electron is known to be a point particle up to an upper limit of 10-18 m. It does not conventionally have a size. So it is impossible to compare the size of the proton to that of an electron. The MASS of the electron is 1/1836 of the MASS of a proton. This does not however tell you anything about their relative dimensions.
The study of electric charges at rest?
Electrostatics hahaha, lol all these questions are on my word search
What does static charge mean?
A buildup of electric charge in an object caused by the presence of many particles with the same charge.
How are electromagnetic waves formed?
they are formed when a electric field and a magnetic field couple. When ever a charged particle undergoes an acceleration it emits electromagnetic radiation. Therefore when an electron 'jumps' from a high energy quantum state to a lower energy quantum state it produces em radiation of a particular frequency. And, more precisely, EM waves are created by accelerating a charge. An electron at rest (or cruising at constant speed) has a stable electric field radiating outwards (really inwards for negative charge). If the electron is accelerated, a ripple in the field radiates outward with the speed of light, with the strongest effect perpendicular to the electron's vector of acceleration and weakest part (zero) along the vector. The electric field fluctuation is in any plane along the vector, and the magnetic part is in the plane perpendicular to that and the vector.
Is static electricity a charge?
Static charge mean "Charges at rest". And at rest, any charge can have its electric field, but its meg.field is always zero at rest.
How induce charges are produced?
you are right charges can never be at rest but the columbs law and electric field and other topics are being studied just imaginary, suppose that when charges are at rest they must emit a field which is called as electric field.
Examples of relation between motion and rest?
example of rest and motion?
When the pen is hang it is a motion or at rest?
Initially it is likely to be in motion and then it comes to rest.
Is the pen at rest in motion?
rest
Why does the electric fan continue to rotate after it is switched off?
it is due to the inertia of motion .. a body tries to continue with the state it was in initially before an external force is applied on it either to take it in motion or to bring it at rest
A body which is in both rest and motion?
At rest and in motion are relative terms. When we say 'in motion' or 'at rest' we mean relative to something else. If you were travelling in a car for instance, you would be at rest relative to the car but in motion relative to the outside world.
What is the tendency of an object at rest to remain at rest or an object in motion to remain in motion is called?
Newton's first law of motion
What is a charge in motion?
A charge in motion is usually called an electric current, but could also be called dynamic electricity (analogous to a charge at rest being called static electricity).
