What is the electric potential energy of a proton

The attempt at a solution correctly uses the formula for electric potential energy and correctly substitutes the given values to find the answer. In summary, the electric potential energy of a proton located 20.0 A from another proton is 1.152x10^-19J.
  • #1
Jabababa
52
0

Homework Statement



What is the electric potential energy of a proton located 20.0 A (one angstrom or 1A is equal to 10^-10m) from another proton?

Homework Equations


Ep= F x d
F= kq1q2/r^2


The Attempt at a Solution



Ep= Fxd
F=kq1q2/r^2

therefore Ep = (Kq1q2)(d)/r^2
d=r
so Ep= KQ1Q2/r

(9x10^9)(1.60x10^-19)(1.60x10^-19)/(20x10^-10)
= 1.152x10^-19J

Help me check see if i got it right please!
 
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  • #2
Your answer looks right :)
It would be easier to directly use the formula for the potential energy rather than starting with the force equation.
 
  • #3
I second the response.
 

Related to What is the electric potential energy of a proton

1. What is electric potential energy?

Electric potential energy is the energy that a charged particle possesses due to its position in an electric field. It is a measure of the work that would be required to move the particle from its current position to a reference point, typically at infinity, in the absence of any other forces.

2. How is electric potential energy calculated?

The electric potential energy of a charged particle, such as a proton, can be calculated using the equation U = qV, where U is the potential energy, q is the charge of the particle, and V is the electric potential. The electric potential is the electric potential energy per unit charge at a given point in an electric field.

3. What is the electric potential energy of a proton?

The electric potential energy of a proton will vary depending on its position in an electric field. However, if we assume the reference point to be at infinity where the potential energy is zero, the electric potential energy of a proton can be calculated using the equation U = qV, where q is the charge of a proton and V is the electric potential at its current position.

4. How does electric potential energy relate to electric force?

Electric potential energy and electric force are closely related. The electric potential energy of a charged particle is a measure of the work that would be required to move it from one position to another in an electric field. Electric force, on the other hand, is a measure of the strength of the interaction between two charged particles. Both electric potential energy and electric force are dependent on the charges and distances between the particles.

5. What are some real-world applications of electric potential energy?

Electric potential energy is a fundamental concept in electricity and is used in many real-world applications. Some examples include batteries, which store electric potential energy, and electric motors, which convert electric potential energy into kinetic energy to power devices. Additionally, electric potential energy is used in the transmission and distribution of electricity in power grids, as well as in the design of electronic circuits and devices.

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