Vector.
Direction of the electric field vector is the direction of the force experienced by a charged particle in an external electric field.
Charge is not a vector.
Gradient= change in field value divided by the distance
When one refers to the strength of a magnetic field, they're usually referring to the scalar magnitude of the magnetic field vector, so no.
it used in our practical life.. for ex. in hills r in mountains
In the name of God; It must be mentioned that a vector has two important characteristics; 1- direction and 2- quantity. in other word for identification a vector these two characteristics must be defined. for example when we speak about displacement of a body it must has direction and quantity. but about gradient, it has a general mean: difference. Also a specified mean may be defined for it: "any increase or decrease in a vector or scalar field". it is a vector field.
Temperature gradient is a vector quantity. It represents the rate of change in temperature with respect to position and has both magnitude and direction.
The potential gradient is a vector quantity. It represents the rate of change of the scalar electric potential with respect to position in space.
It stands for gradient vector flow.
No, the curl of a vector field is a vector field itself and is not required to be perpendicular to every vector field f. The curl is related to the local rotation of the vector field, not its orthogonality to other vector fields.
The curl of an electric field is zero because electric fields are conservative, meaning the work done by the field on a charge moving around a closed path is zero. This implies that the circulation of the electric field around any closed loop is zero, leading to a curl of zero.
The equation that connects the scalar potential (V) and the vector potential (A) is given by: E = -∇V - ∂A/∂t, where E is the electric field, ∇ is the gradient operator, and ∂t represents the partial derivative with respect to time.
The 'upside down' triangle symbol is the (greek?) letter Nabla. Nabla means the gradient. The gradient is the vector field whoose components are the partial derivatives of a function F given by (df/dx, df/dy).
Gradient= Change in field value/Distance
Vector.
The gradient of a scalar field is a vector because it represents the direction of steepest increase of the scalar field at a given point. It points in the direction of the greatest rate of change of the scalar field and its magnitude represents the rate of change. This vector provides valuable information about how the scalar field varies in space.