Direction of Electric Field vs. Electric Force

In summary, the electric field represents the direction and strength of the force experienced by a charged particle, while the electric force is the actual force exerted on a charged particle. The direction of the electric field is always perpendicular to the direction of the electric force. They can never be the same, as this would result in a zero force. The direction of the electric field affects the motion of charged particles by determining the direction of the electric force on the particle. The direction of the electric field and force can be determined by using a positively charged test particle or the right-hand rule.
  • #1
Core2uu
5
0
Just a conceptual question by me; no formal question.

Why is it that electric force on something is directionally opposite to that of the electric field?
 
Physics news on Phys.org
  • #2
It's only opposite if the force is exerted on a negative charge.
 
  • #3
SammyS said:
It's only opposite if the force is exerted on a negative charge.

Thanks.
 

1. What is the difference between electric field and electric force?

The electric field is a physical quantity that represents the direction and strength of the force experienced by a charged particle in an electric field. The electric force, on the other hand, is the actual force exerted on a charged particle by an electric field. In other words, the electric field is the cause, while the electric force is the effect.

2. How are the direction of electric field and electric force related?

The direction of the electric field is always perpendicular to the direction of the electric force. This means that if the electric field is pointing in one direction, the electric force on a charged particle will be perpendicular to that direction.

3. Can the direction of electric field and electric force be the same?

No, the direction of the electric field and electric force can never be the same. This is because the electric force is always perpendicular to the electric field, and if they were in the same direction, the force would be zero.

4. How does the direction of electric field affect the motion of charged particles?

The direction of the electric field determines the direction of the electric force on a charged particle. This force can either accelerate the particle or change its direction of motion, depending on the particle's charge and the direction of the electric field. The motion of the particle will always be in the direction of the electric force.

5. How can the direction of electric field and electric force be determined?

The direction of the electric field can be determined using the direction of the electric force on a positively charged test particle. The force will be in the direction opposite to the electric field. Alternatively, the direction can also be determined by using the right-hand rule, where the fingers point in the direction of the electric field and the thumb points in the direction of the electric force.

Similar threads

  • Introductory Physics Homework Help
Replies
9
Views
247
  • Introductory Physics Homework Help
Replies
7
Views
1K
  • Introductory Physics Homework Help
Replies
12
Views
1K
  • Introductory Physics Homework Help
Replies
12
Views
1K
  • Introductory Physics Homework Help
Replies
2
Views
1K
  • Introductory Physics Homework Help
Replies
11
Views
1K
Replies
22
Views
1K
  • Introductory Physics Homework Help
Replies
6
Views
950
  • Introductory Physics Homework Help
Replies
2
Views
1K
  • Introductory Physics Homework Help
Replies
1
Views
239
Back
Top