Enter the electric field strength, the area through which the field is passing, and the angle between the field lines and the normal to the surface into the calculator to determine the net outward electric flux.

## Net Outward Flux Formula

The following formula is used to calculate the net outward electric flux:

Φ = E * A * cos(θ)

Variables:

- Φ is the net outward electric flux (Nm²/C)
- E is the electric field strength (N/C)
- A is the area through which the field is passing (m²)
- θ is the angle between the field lines and the normal to the surface (degrees)

To calculate the net outward electric flux, multiply the electric field strength by the area and the cosine of the angle between the field lines and the normal to the surface.

## What is Net Outward Flux?

Net outward flux is a measure of the quantity of the electric field that passes through a given area. It is an important concept in electromagnetism and is used in Gauss’s law, which relates the electric flux through a closed surface to the charge enclosed by that surface. The net outward flux can be positive, negative, or zero, depending on the orientation of the electric field with respect to the surface area.

## How to Calculate Net Outward Flux?

The following steps outline how to calculate the Net Outward Flux:

- First, determine the electric field strength (E) in newtons per coulomb (N/C).
- Next, determine the area (A) through which the field is passing in square meters (m²).
- Next, determine the angle (θ) between the field lines and the normal to the surface in degrees.
- Use the formula Φ = E * A * cos(θ) to calculate the net outward electric flux.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem:**

Use the following variables as an example problem to test your knowledge.

Electric field strength (E) = 50 N/C

Area (A) = 2 m²

Angle (θ) = 30 degrees