Net electric field with triangle

In summary, in this conversation, the participants discuss the problem of finding the magnitude of the net electric field produced by a proton and an electron at the third corner of an equilateral triangle. They mention using the formula E=kQ/r^2 and the concept of superposition to solve the problem, and suggest using the Pythagorean theorem to find the distance. They also note that the answer will be negative.
  • #1
nothingatall
19
0

Homework Statement



A proton and an electron form two corners of an equilateral triangle of side length 5.3 x 10-6 m. What is the magnitude of the net electric field these particles produce at the third corner?

Homework Equations


E=kQ/r^2


The Attempt at a Solution


I drew a triangle with an electron and a proton as the corners. I'm thinking of using Pythagorean theorem or something then solve this with the formula by dividing the distance. I'm sort of confused but i do know that the answer will be negative.
 
Physics news on Phys.org
  • #2
hopefully this can point you in the correct direction to go into solve this problem. one of the main concepts in electrodynamics is superposition. superposition says that the electric field at a point is the sum of all the electric charges acting on that point. hopefully the fact the electrostatics follows the rule of superposition you might have a slight idea how to approach this problem.
 
  • #3


I can provide a more specific and accurate approach to solving this problem. Firstly, we can use Coulomb's Law, which states that the magnitude of the electric force between two charged particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. In this case, we have an electron with a charge of -1.6 x 10^-19 C and a proton with a charge of +1.6 x 10^-19 C, separated by a distance of 5.3 x 10^-6 m. Plugging these values into the formula, we can calculate the magnitude of the electric force between the two particles.

Next, we can use the concept of superposition to find the net electric field at the third corner of the triangle. Since the electric field is a vector quantity, we need to consider both the magnitude and direction of the electric fields produced by the electron and proton individually. Since the charges of the particles are equal in magnitude but opposite in sign, the electric fields produced by them will also be equal in magnitude but opposite in direction. Using vector addition, we can find the net electric field at the third corner of the triangle.

It is important to note that the electric field is a vector quantity, so the answer will not be negative. Instead, it will have both a magnitude and a direction. The direction of the net electric field can be determined by the direction of the force on a positive test charge placed at the third corner of the triangle.

In summary, we can use Coulomb's Law and vector addition to calculate the net electric field at the third corner of the equilateral triangle formed by an electron and a proton. This approach will provide a more accurate and scientifically sound solution to the problem.
 

Related to Net electric field with triangle

1. What is a net electric field?

A net electric field is the overall electric field at a particular point in space, taking into account the contributions of all nearby charges. It is a vector quantity and is determined by the sum of the individual electric fields from each charge.

2. What is the formula for calculating the net electric field of a triangle?

The formula for calculating the net electric field of a triangle is E = kq/r^2, where E is the electric field, k is the Coulomb constant, q is the charge of the triangle, and r is the distance from the triangle to the point where the electric field is being measured.

3. How do you determine the direction of the net electric field for a triangle?

The direction of the net electric field for a triangle is determined by the direction of the individual electric fields from each charge. If the charges are all positive, the net electric field will point away from the triangle. If the charges are all negative, the net electric field will point towards the triangle. If the charges are a mixture of positive and negative, the net electric field will be the vector sum of the individual electric fields.

4. Can the net electric field of a triangle ever be zero?

Yes, the net electric field of a triangle can be zero if the charges are arranged in a way that cancels out each other's electric fields. For example, if there are two positive charges on one side of the triangle and two negative charges on the other side, the net electric field will be zero at the center of the triangle.

5. How does distance affect the net electric field of a triangle?

The net electric field of a triangle is inversely proportional to the distance from the triangle. This means that as the distance increases, the net electric field decreases. This is because the electric field follows an inverse square law, where the strength of the electric field decreases with the square of the distance from the source charge.

Similar threads

  • Introductory Physics Homework Help
Replies
5
Views
897
  • Introductory Physics Homework Help
Replies
5
Views
748
Replies
22
Views
1K
  • Introductory Physics Homework Help
Replies
12
Views
2K
  • Introductory Physics Homework Help
Replies
2
Views
1K
  • Introductory Physics Homework Help
Replies
2
Views
3K
  • Introductory Physics Homework Help
Replies
4
Views
1K
  • Introductory Physics Homework Help
Replies
3
Views
9K
  • Introductory Physics Homework Help
Replies
14
Views
4K
  • Introductory Physics Homework Help
Replies
5
Views
3K
Back
Top