how area and length is vector quantity
Answers
Explanation:
in physics, area is defined as a vector quantity to account for the dot product of vectors like Electric field and Magnetic Field(to find flux). Defining area as a vector helps find the component of Fields perpendicular to a surface. Also when finding the flux through a surface, the area vector is perpendicular to the surface at that point.
When we consider flow of something through a surface (like flow of water or air through a surface or an imaginary surface formed by some boundary like the case of a pipe), called flux, we use area as a vector as it helps in defining flux(just a fancy word for amount of flow) as dot product of vector quantity that flows out with area vector. Here area can't be used as scalar, as for finding flux orientation of area plays a very important role, by changing orientation you change the amount of flow through the area.
A unit vector is any vector with a length of one; normally unit vectors are used simply to indicate direction. A vector of arbitrary length can be divided by its length to create a unit vector.
Answer:
We say area is a VECTOR quantity because it is a property of a surface, and surfaces are orientable.
And
Length is not a VECTOR quantity, it is a SCALER quantity because it has directions and the direction in the length is being measured does not influence the measurement.....
HOPE IT HELPS YOU BUDDY.....