Electric Potential Energy and Electric Potential?

AI Thread Summary
Electric potential energy refers to the energy stored in a system due to its position in an electric field, typically associated with charged particles. In contrast, electric potential is defined as the electric potential energy per unit charge at a specific location in the electric field, often referred to as voltage in circuit contexts. The units for electric potential are joules per coulomb, while electric potential energy is measured in joules. This distinction parallels gravitational concepts, where gravitational potential is measured in joules per kilogram. Understanding these differences clarifies how energy and potential relate to charged particles in electric fields.
S.R
Messages
81
Reaction score
0

Homework Statement


What's the difference between electric potential energy and electric potential?

Can someone explain these concepts, simply? I don't understand any definitions I've found on the internet. Any help would be appreciated.

Homework Equations


N/A

The Attempt at a Solution


N/A
 
Physics news on Phys.org
S.R said:

Homework Statement


What's the difference between electric potential energy and electric potential?

Can someone explain these concepts, simply? I don't understand any definitions I've found on the Internet. Any help would be appreciated.

Homework Equations


N/A

The Attempt at a Solution


N/A

This is not a coursework question.
Hello S.R. Welcome to PF.

electric potential energy is Potential Energy due to an electric field. It is usually applied to a particle or system of particles.

electric potential is a somewhat different concept. It can be defined as the Potential Energy per unit charge for a charged particle due Electric Field. In other words, it's the electric potential energy at a particular location that a particle with a unit charge would have.

Those are off the top of my head, so I hope my head's on straight tonight. :smile:
 
SammyS said:
Hello S.R. Welcome to PF.

electric potential energy is Potential Energy due to an electric field. It is usually applied to a particle or system of particles.

electric potential is a somewhat different concept. It can be defined as the Potential Energy per unit charge for a charged particle due Electric Field. In other words, it's the electric potential energy at a particular location that a particle with a unit charge would have.

Those are off the top of my head, so I hope my head's on straight tonight. :smile:

Thanks, Sammy. Is electric potential referred to as voltage?
 
S.R said:
Thanks, Sammy. Is electric potential referred to as voltage?
It often is referred to as voltage in electric circuits.
 
I go along with SammyS. The unit of potential is JOULE per COULOMB and the unit of potential energy is JOULE.
Potential refers to a region of space if you like and potential energy refers to a charge brought into the space.
There is a direct analogy with gravitation.
The unit of gravitational potential is JOULE per kg
The unit of gravitational potential energy is JOULE
Hope this helps
 
I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
Thread 'Collision of a bullet on a rod-string system: query'
In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
Thread 'A cylinder connected to a hanging mass'
Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
Back
Top