# Electric Potential Energy and Electric Potential Difference

• predentalgirl1
In summary, the conversation discusses the required work to move a particle with a charge of -4.0 microcoulombs from the positive to the negative plate of a pair of parallel plates charged by a 12-V battery. However, more information is needed, such as the capacitance or the area and distance between the plates, to accurately calculate the work required.
predentalgirl1
A pair of parallel plates is charged by a 12-V battery. How much work is required to move a particle with a charge of --4.0 microcoulombs (MC) from the positive to the negative plate?

Given that,
Emf = 12 V
q = -4 x 10 -6 C
I have,
Work done (w) = q x V
= -4 x 10 -6 x 12
= - 4.8 x 10-5 J ?
repulsion

you seem to be missing some information. what is the capacitance of the parallel plate? or, what is the area of the plates and the distance between the plates?

YOU CAN'T ASSUME THAT THE ELECTRIC POTENTIAL OF THE BATTERY IS GOING TO CREATE A PERFECT CHARGE DISTRIBUTION TO CREATE AN ELECTRIC FIELD NEEDED TO FIGURE OUT THE WORK. IN OTHER WORDS...

V DOES NOT EQUAL -WORK/Q WITH THE INFORMATION YOU'VE GIVEN UNLESS YOU'RE TAKING SOME TYPE OF SURVEY COURSE...HAHAHA.

Last edited:

## 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 the potential energy that is associated with the electrostatic force between two charged objects.

## 2. How is electric potential energy measured?

Electric potential energy is measured in Joules (J). It can be calculated by multiplying the charge of the particle (in Coulombs) by the electric potential difference (in Volts) between two points in the electric field.

## 3. What is electric potential difference?

Electric potential difference, also known as voltage, is the difference in electric potential energy between two points in an electric field. It is measured in Volts (V).

## 4. How is electric potential difference different from electric potential energy?

Electric potential difference is a measure of the difference in electric potential energy between two points in an electric field. It is a scalar quantity, while electric potential energy is a measure of the magnitude of the electric field at a specific point. Electric potential difference is dependent on the distance between the two points, while electric potential energy is dependent on the charge of the particle and the electric field strength.

## 5. How does electric potential energy affect the movement of charged particles?

Electric potential energy determines the direction and speed of movement of charged particles in an electric field. Charged particles will move from areas of higher potential energy to areas of lower potential energy, following the direction of the electric field lines. The greater the potential energy difference, the faster the particles will move.

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