# What is cross section formula?

This plane is further perpendicular to the axis of its symmetry; thus, this projection is called a cross-sectional area. The cross section area formula = l x w. The volume of Cross Section. The volume of the solid is defined by the integral of the area of cross-section.

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## What is cross section and longitudinal section?

Longitudinal studies and cross-sectional studies are two different types of research design. In a cross-sectional study you collect data from a population at a specific point in time; in a longitudinal study you repeatedly collect data from the same sample over an extended period of time.

## What is a cross section in electric current?

If you cut directly and squarely across the width of a wire then you will look at the end and it looks like a circle. The area of that end is the cross sectionarea, which is Pi x r^2. A larger cross section area results in lower resistance per foot when the type ofwire is the same.

## What is total cross section?

The total cross-section is the sum of all the partial cross-sections such as: elastic scattering cross-section (σs) inelastic scattering cross-section (σi) absorption cross-section (σa)

## What is cross-sectional view?

: a view or drawing that shows what the inside of something looks like after a cut has been made across it. [count] a detailed cross section of the human brain.

## What is another word for cross section?

In this page you can discover 14 synonyms, antonyms, idiomatic expressions, and related words for cross-section, like: transversion, transection, cross-sectional, parallelepiped, proportion, random-sample, sample, sampling, barn, semicircle and subimages.

## What is cross-sectional area of wire?

The cross-sectional area of a wire is directly proportional to the square of its radius (A = πr2), and hence to the diameter of the wire as well. Therefore, if we increase the diameter of the wire two times, its cross-sectional area will increase four times.

## What is the formula of area of cross section in physics?

Cross-Sectional Area of a Rectangular Solid Therefore, if a cross section is parallel to the top or bottom of the solid, the area of the cross-section is l × w. If the cutting plane is parallel to one of the two sets the sides, the cross-sectional area is instead given by l × h or w × h.

## Is it cross section or cross section?

If you refer to a cross-section of particular things or people, you mean a group of them that you think is typical or representative of all of them. I was surprised at the cross-section of people there. A cross-section of an object is what you would see if you could cut straight through the middle of it.

## Is cross section and transverse section the same?

Transverse sections are taken perpendicular to the long axis of the stem (cross-section). Radial sections are taken parallel to the long axis of the stem and cut through the very center of the stem (on radii).

## Is cross section one or two words?

In some cases it is considered acceptable to have a gap between two words, in other cases to bridge the gap with a hyphen, and in others to join the two words. ‘Cross section’ isn’t quite the same as ‘cross-section’ and would look inelegant and thus unacceptable if written as ‘crosssection’.

## What is cross section of solid figure?

A cross section of a solid is a plane figure obtained by the intersection of that solid with a plane. The cross section of an object therefore represents an infinitesimal “slice” of a solid, and may be different depending on the orientation of the slicing plane.

## What is the difference between area and cross-sectional area?

Area is somewhat that is occupied by an object when it is resting on asurface i.e area is the space which isused by the object. Whereas cross-sectional area is an area which we obtain when the same object is cut into two pieces. The area of that perticular cross section is know ascross sectional area.

## What is cross-sectional diameter?

The size of the smallest circle through which a molecule can pass is called its minimum effective cross-sectional diameter.

## What is meant by longitudinal section?

Longitudinal section: A section that is cut along the long axis of a structure. Longitudinal section is the opposite of cross-section.

## Where is longitudinal section?

The longitudinal section is defined as the section along the long axis of the structure. It is also related to the other vertical sections (median, coronal and sagittal). This section is done by a plane along the vertical axis of the body. The opposite of longitudinal is a cross-section.

## How do you draw a cross-section?

1. How to Draw a Cross-Section of a Map.
2. Take a thin strip of paper and place it along the transect line on the map.
3. On a piece of graph paper, draw the horizontal axis of your graph exactly the same length as the transect A-B.
4. Draw two vertical axes using a suitable scale.

## How does cross-sectional area affect resistance?

A more detailed investigation shows that resistance and cross section area are inversely proportional . If you double the cross section area you half the resistance of the wire.

## What is resistivity formula?

Resistivity, commonly symbolized by the Greek letter rho, ρ, is quantitatively equal to the resistance R of a specimen such as a wire, multiplied by its cross-sectional area A, and divided by its length l; ρ = RA/l. The unit of resistance is the ohm.

## What is the area of cross section of a prism?

The cross-section is the two dimensional shape repeated throughout the prism’s length. You simply work out the area of this cross-sectional shape (using your knowledge on area) and then multiply that area by the length (sometimes referred to as the depth).

## What is the unit of scattering cross section?

Scattering Theory Dimensionally, a cross-section represents an area, with the basic unit being the barn, which represents an area of 10−28 m 2.

## What is partial cross section?

To each final state corresponds a partial cross section , which is a part of the total cross section which includes all final states. A neutron may simply bounce off an atomic nucleus or be captured by it. The capture can be followed by a gamma emission, cause a nuclear reaction, for example a nuclear fission.

## What shape is the cross section of a cube?

Slicing the cube with this plane creates a cross section that is a triangle, but not an equilateral triangle; it is a scalene triangle. Notice that if any two selected points are equidistant from the original vertex, the cross section would be an isosceles triangle.

## What is a cross-section in engineering?

A view of the interior of an object that is represented as being cut in two, the cut surface presenting the cross section of the object. Engineered Media.

## What is an example of a cross-sectional study?

Another example of a cross-sectional study would be a medical study examining the prevalence of cancer amongst a defined population. The researcher can evaluate people of different ages, ethnicities, geographical locations, and social backgrounds.