Electrons in Electric Fields: Examining Changes

In summary: This acceleration is determined by the strength and direction of the electric field, as well as the electron's initial velocity.
  • #1
Magnetons
18
4
What changes occur in electron, whenit through in a electric field
 
  • Like
Likes Delta2
Physics news on Phys.org
  • #2
What do you think yourself?
 
  • #3
According to classical physics nothing changes in the charge distribution of electron as electron is considered to be a point particle and all its charge is concentrated in one point of space.

The only change that can happen is in the position and velocity of electron as electron will experience the force from the electric field ##F_E=Eq_e## (where E the intensity of the electric field) and if this force is the only force upon the electron then according to classical mechanics (and neglecting the energy lost due to EM radiation from the electron being accelerating) we ll have $$Eq_e=m_e\frac{d^2x}{dt^2}$$ where ##q_e,m_e## the charge and mass of electron respectively and ##x(t)## its position as function of time.
 
Last edited:
  • Like
Likes Magnetons
  • #4
@Magnetons to put it shortly and in plain english, nothing changes "in the electron" itself and truth be told there is no such thing as "inside an electron", at least to the best of our current knowledge. But electrons do have properties, an E field can basically either accelerate or decelerate an electron. So the electron either gains or loses kinetic energy.
depending on the trajectory , kinetic energy of the electron and the E field line direction applied the electron can be either accelerated or decelerated in straight lines or deflected and bent from a straight trajectory into a curve, or it's trajectory can be changed by certain angle.
Some old small CRT's used E field instead of B field to deflect the electron beam
 
  • Like
Likes Delta2
  • #5
Magnetons said:
Summary:: Question

What changes occur in electron, whenit through in a electric field
It could either slow down or speed up and/or change its direction of motion. In other words, it accelerates.
 
  • Like
Likes Magnetons and vanhees71

Related to Electrons in Electric Fields: Examining Changes

What are electrons?

Electrons are subatomic particles that have a negative charge. They are found in the outer shells of atoms and are responsible for the flow of electricity.

How do electric fields affect electrons?

Electric fields exert a force on electrons, causing them to move. The direction and strength of the electric field determine the direction and speed of the electron's movement.

What changes can occur to electrons in an electric field?

Electrons can experience changes in their speed, direction, and energy when placed in an electric field. They can also be accelerated or decelerated depending on the strength of the electric field.

How are electric fields created?

Electric fields are created by the presence of charged particles. This can be achieved by separating positive and negative charges, as in a battery, or by inducing a charge on an object through contact or friction.

What is the significance of studying electrons in electric fields?

Studying electrons in electric fields is crucial for understanding and manipulating electricity, which is essential for many modern technologies. It also allows scientists to investigate the behavior of subatomic particles and gain a deeper understanding of the fundamental laws of physics.

Similar threads

  • Electromagnetism
Replies
5
Views
403
Replies
16
Views
1K
Replies
1
Views
242
Replies
9
Views
2K
Replies
3
Views
624
Replies
22
Views
971
Replies
1
Views
1K
  • Electromagnetism
Replies
14
Views
1K
  • Electromagnetism
Replies
21
Views
1K
  • Electromagnetism
Replies
8
Views
750
Back
Top