Current density is
a vector quantity
because it's a product of charge density and velocity, here charge density is a scalar quantity and velocity is a vector quantity, which makes current density also a vector quantity.
Why current density is a vector but current is a scalar?
The current is a scalar quantity. … Current density is a vector quantity because
it's a product of charge density and velocity
, here charge density is a scalar quantity and velocity is a vector quantity, which makes current density also a vector quantity.
Is current a scalar or vector?
Note: Current is
a vector
because it has a magnitude and a direction. But the thing is a vector always obeys the law of addition of vectors. Since current doesn't obey it and it follows algebraic addition, currents are scalar.
What is current density a vector?
The current density vector is defined as a
vector whose magnitude is the electric current per cross-sectional area at a given point in space
, its direction being that of the motion of the positive charges at this point. In SI base units, the electric current density is measured in amperes per square metre.
Is density a scalar or vector?
Scalar
, a physical quantity that is completely described by its magnitude; examples of scalars are volume, density, speed, energy, mass, and time. Other quantities, such as force and velocity, have both magnitude and direction and are called vectors.
Is current is a tensor quantity?
Both scalars and vectors are special cases of tensors.
Current is a scalar
. Current density is a vector. Because scalars and vectors are tensors this means current and current density are both tensors.
Is charge a vector quantity?
Electric charge is
a scalar quantity
because charge never graduated into the level of vectors or tensors that need both magnitude and direction.
What is current density equal to?
| J, J = current density [ A/m 2 ] as a vector or its scalar magnitude | A = area [m 2 ] |
|---|
What is the symbol of current density?
The SI unit of electric current density is ampere per square meter. The symbol
“J”
is used for electric current density.
What is difference between current and current density?
The current tells you how much charge flows through a given area, but it doesn't give you any information about the area itself. The
current density gives you the additional “per area” information
.
Is drift velocity scalar or vector?
It is a
vector physical quantity
; both magnitude and direction are required to define it.
Is AC current a vector quantity?
To be precise,
current is not a vector quantity
. Although current has a specific direction and magnitude, it does not obey the law of vector addition.
What is a tensor in physics?
A tensor is
a concept from mathematical physics that can be thought of as a generalization of a vector
. While tensors can be defined in a purely mathematical sense, they are most useful in connection with vectors in physics. … In this article, all vector spaces are real and finite-dimensional.
Which is a tensor quantity?
A tensor is a quantity, for example
a stress or a strain
, which has magnitude, direction, and a plane in which it acts. Stress and strain are both tensor quantities. … A tensor is a quantity, for example a stress or a strain, which has magnitude, direction, and a plane in which it acts.
Is electric flux a vector quantity?
Is Electric flux a scalar or a vector quantity? Answer:
Electric flux is a scalar quantity
. It is a scalar because it is the dot product of two vector quantities, electric field and the perpendicular differential area.
Is Coulomb scalar or vector?
Force is a
vector quantity
as it has both magnitude and direction. The Coulomb's law can be re-written in the form of vectors. Remember we denote the vector “F” as F, vector r as r and so on.
