## What is the equation for electric field?

E = F q test = k | Q | r 2 . This equation gives the magnitude of the electric field created by a point charge Q. The distance r in the denominator is the distance from the point charge, Q, or from the center of a spherical charge, to the point of interest.

**What does an electric field diagram show?**

Electric field lines reveal information about the direction (and the strength) of an electric field within a region of space. If the lines cross each other at a given location, then there must be two distinctly different values of electric field with their own individual direction at that given location.

### How do you make an oval graph?

To graph an ellipse, mark points a units left and right from the center and points b units up and down from the center. Draw an ellipse through these points. The orientation of an ellipse is determined by a and b. If a>b then the ellipse is wider than it is tall and is considered to be a horizontal ellipse.

**What is the difference between graphs of electric field and electric potential with distance?**

Answer. area under a graph of electric field strength against distance, between two points, is the potential difference between those two points. If we double the distance between us and a point, the potential difference between us and that point will also double in a uniform electric field.

## What is k in electric field equation?

The constant of proportionality k is called Coulomb’s constant. In SI units, the constant k has the value. k = 8.99 × 10 9 N ⋅ m 2 /C 2.

**What is the mathematical equation for the electric force between two charges identify each variable?**

F=kq1q2/r2 “F” is the resulting force between the two charges.

### What is a hyperbola graph?

A hyperbola is an open curve with two branches, the intersection of a plane with both halves of a double cone. The plane does not have to be parallel to the axis of the cone; the hyperbola will be symmetrical in any case.