# In which region is it possible for electric potential = 0?

• pinkie9211
In summary, the conversation discussed two charges, 4uC and -2uC, that are 0.01m apart and the question of where along the line connecting the charges the electric potential could be zero. The equation for electric potential of a point charge, V=kQ/r, and the rule for combining electric potentials were mentioned as possible hints for solving the problem. It was also noted that for a point charge at the origin, V= kQ/r.

#### pinkie9211

Two charges that are shown:
I (4uC) II (-2uC) III
In which regions all the line connecting the charges is it possible for the electric potential to be zero?

1. Homework Statement

They are 0.01m apart

## The Attempt at a Solution

I understand that the 4uC charge and the -2uC charge are going to attract...but I have no idea where the potential could be equal to zero.

Hint:
What is the equation for the electric potential of a point charge?
What si the rule for combining electric potentials?

V= kQ/r

and I'm not sure...

Indeed ##V(\vec r)=kQ/r## for a point charge ##Q## at the origin.
If you have two or more charges, then the electric potentials add up.

## 1. What is electric potential?

Electric potential is the measure of the electric potential energy per unit charge at a specific location in an electric field.

## 2. How is electric potential calculated?

Electric potential is calculated by dividing the electric potential energy by the charge at a specific location.

## 3. What does it mean for electric potential to be equal to 0?

An electric potential of 0 means that there is no potential difference between two points in the electric field, indicating that the charge will not experience a force when moving between those points.

## 4. In which region is it possible for electric potential to be equal to 0?

Electric potential can be equal to 0 in regions where the electric field is constant or where the electric field is perpendicular to the equipotential lines.

## 5. Why is it important to know where electric potential is equal to 0?

Knowing where electric potential is equal to 0 can help us understand the behavior of charges in an electric field and can also help us identify regions where charges will experience no force or work.