A vector field is a spatial region where each point has a physical quantity, and when this quantity is a vector, it is termed a vector field. The flux of a vector field is defined as the number of vector lines passing through a surface. An example is provided to illustrate the concept.

1. Flux of a vector field

2. What is vector
field?
• It is the region in space of which every point is
characterized by a physical quantity.
• If the physical quantity is vector , then field is known as
vector field.

3. Flux of a vector field
Definition :
• Number of vector lines passing
through a surface is known as flux of
that vector field.
Example :
•

4. Problem