Table of Contents

- 1 What is the flux through the plane taken to the field?
- 2 What is the flux of a uniform electric field?
- 3 What is the flux through the surface of the surface is parallel to the lines of force?
- 4 Why do we calculate flux?
- 5 What is the electric flux due to electric field E 3 * 10 3?
- 6 How do you calculate flux through a hemisphere?
- 7 What is the SI unit of magnetic flux?
- 8 How do you find the electric flux through a surface?
- 9 How do you find the flux of a vector field?
- 10 What is the total flux in the negative z direction?

## What is the flux through the plane taken to the field?

↪When B field is parallel to a plane surface, the flux through the plane is zero.

## What is the flux of a uniform electric field?

zero

The net flux of the uniform electric field through a cube oriented so that its faces are parallel to the coordinate planes is zero. This is because the number of lines entering the cube is the same as the number of lines leaving the cube.

**What is the flux through the plane taken perpendicular to the field answer?**

Answer: The magnetic flux through a unit area perpendicular to the field is Magnetic Flux Density. – It is defined as the amount of magnetic flux passing through per unit area of a section which is perpendicular to the direction of field.

### What is the flux through the surface of the surface is parallel to the lines of force?

If the surface is parallel to the field (right panel), then no field lines cross that surface, and the flux through that surface is zero. If the surface is rotated with respect to the electric field, as in the middle panel, then the flux through the surface is between zero and the maximal value.

### Why do we calculate flux?

It is a useful tool for helping describe the effects of the magnetic force on something occupying a given area. The measurement of magnetic flux is tied to the particular area chosen. We can choose to make the area any size we want and orient it in any way relative to the magnetic field.

**What is the amount of flux?**

Flux as flow rate per unit area. In transport phenomena (heat transfer, mass transfer and fluid dynamics), flux is defined as the rate of flow of a property per unit area, which has the dimensions [quantity]·[time]−1·[area]−1. The area is of the surface the property is flowing “through” or “across”.

## What is the electric flux due to electric field E 3 * 10 3?

electric flux will be zero. electric field, E = 3 × 10³ i N/C through a square of side 10cm.

## How do you calculate flux through a hemisphere?

The flux associated with the base of the hemisphere is ϕ=-EπR2 (negative as it is the incoming flux). Hence, the same amount of flux wil be associated with curved surface, but the sigh of the flux will be positive as it is as outgoing flux. Hence, ϕcurve=EπR2 .

**What is the net flux of the uniform electric field of exercise 1 through a cube of side 20 cm oriented so that its faces are parallel to the coordinate planes?**

All the faces of a cube are parallel to the coordinate axes. Therefore, the number of field lines entering the cube is equal to the number of field lines piercing out of the cube. As a result, net flux through the cube is zero.

### What is the SI unit of magnetic flux?

The SI unit of magnetic flux is the weber (Wb; in derived units, volt–seconds), and the CGS unit is the maxwell.

### How do you find the electric flux through a surface?

The electric flux through a surface is proportional to the number of field lines crossing that surface. Note that this means the magnitude is proportional to the portion of the field perpendicular to the area. The electric flux is obtained by evaluating the surface integral where the notation used here is for a closed surface S.

**How to define the electric flux of a uniform electric field?**

Now that we have defined the area vector of a surface, we can define the electric flux of a uniform electric field through a flat area as the scalar product of the electric field and the area vector, as defined in Products of Vectors:

## How do you find the flux of a vector field?

Find the flux of the vector field in the negative z direction through the part of the surface z=g(x,y)=16-x^2-y^2 that lies above the xy plane (see the figure below). For this problem: It follows that the normal vector is <-2x,-2y,-1>. Computing Fo<-2x,-2y,-1>, we have Here we use the fact that z=16-x^2-y^2. Hence, the integral becomes

## What is the total flux in the negative z direction?

Hence, it follows that the total flux is If we are asked for the flux in the negative z direction, then we use the vector for the normal direction. Formula for Flux for Parametric Surfaces Suppose that the surface S is described in parametric form: where (u,v) lies in some region R of the uv plane. It can be shown that