Taking a proton and an electron that make up an atom

Solving problem 31222, it is necessary to determine the field strength at points B and C, which are located at a distance of 5 * 10^-9 cm from the point charges - proton and electron, which make up the hydrogen atom. Points B and C are located at the same distance from the proton and electron, as shown in the figure.

To solve the problem, you should use Coulomb's law, which states that the force acting between two point charges is proportional to the product of the charges and inversely proportional to the square of the distance between them.

Based on this, the field strength at point B will be equal to the sum of the field strength vectors created by the proton and electron. At point C, the field strength vectors will be directed in different directions and their difference will be equal to the field strength at this point.

When calculating the field strength at points B and C, you should use the formula:

E = k * q / r^2

where E is the field strength, k is the Coulomb constant (9 * 10^9 N * m^2 / C^2), q is the magnitude of the charge, r is the distance between charges.

In this problem, the charges of the proton and electron are equal in magnitude, so the value of q will be the same for both charges. The distance r is also the same for points B and C.

Thus, the field strength at point B will be equal to:

E_B = k * q / (2r)^2 = k * q / 4r^2

And at point C:

E_C = k * q / r^2 - k * q / (2r)^2 = k * q / 4r^2

Answer: the field strength at point B is equal to k * q / 4r^2, and at point C - k * q / 4r^2.

Product Description: Digital Product in Digital Product Store

The product is an electronic version of the book "Fundamentals of Physics", which contains a detailed explanation of the basic laws and principles of physics. The book is designed for both beginners and advanced users and contains many interesting problems and examples.

Description of the task in the book:

Taking the proton and electron that make up the hydrogen atom as point charges located at a distance of 5*10^-9 cm, it is necessary to find the field strength at points B and C, located at the same distance from the proton as the electron, and located , as it shown on the picture.

Solution tasks:

To solve the problem, it is necessary to use Coulomb's law, which states that the force acting between two point charges is proportional to the product of the charges and inversely proportional to the square of the distance between them. Based on this, you can calculate the field strength at points B and C using the formula E = k * q / r^2, where E is the field strength, k is the Coulomb constant, q is the magnitude of the charge, r is the distance between charges.

In this problem, the charges of the proton and electron are equal in magnitude, so the value of q will be the same for both charges. The distance r is also the same for points B and C. Thus, the field strength at point B will be equal to k * q / 4r^2, and at point C - k * q / 4r^2.

If you have any questions about solving a problem, contact our specialists, who are always ready to help you at any convenient time.

To solve this problem, it is necessary to use Coulomb's law, which states that the force acting between two point charges is proportional to the product of the charges and inversely proportional to the square of the distance between them.

Taking the proton and electron that make up the hydrogen atom as point charges located at a distance of 5*10^-9 cm, we can calculate the field strength at points B and C using the formula E = k * q / r^2, where E - field strength, k - Coulomb constant (9 * 10^9 N * m^2 / C^2), q - charge magnitude, r - distance between charges.

In this problem, the charges of the proton and electron are equal in magnitude, so the value of q will be the same for both charges. The distance r is also the same for points B and C.

Thus, the field strength at point B will be equal to k * q / 4r^2, and at point C - k * q / 4r^2.

So, to solve the problem you need:

  • use Coulomb's law;
  • take the charges of a proton and electron as point charges;
  • calculate the distance between charges;
  • calculate the field strength at points B and C using the formula E = k * q / r^2;
  • answer the problem question by indicating the field strength values ​​at points B and C.


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The product description is not related to the topic of solving the problem that is presented in the description. If you have questions about solving a problem, I will be happy to help you and explain how to solve it.

So, problem 31222 is to find the field strength at points B and C, which are located at a distance of 5*10^-9 cm from the proton and electron that make up the hydrogen atom.

To solve the problem, you need to use Coulomb's law, which states that the force of interaction between two point charges is directly proportional to their charges and inversely proportional to the square of the distance between them.

The formula for calculating the electric field strength at a point located at a distance r from a point charge with charge q is as follows:

E = k*q/r^2,

where k is the Coulomb constant, which is equal to 910^9 Nm^2/Cl^2.

To find the field strength at points B and C, you need to use this formula, substituting the corresponding values ​​of charges and distances.

Answers to the problem will depend on specific charge values ​​that are not indicated in the problem statement. Therefore, I cannot give you a definitive answer to this problem.


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