Question

What is the flux through the plane taken perpendicular to the field ?​

Answer 1

Answer:

EA

WHERE E= ELECTRIC FIELD

A= AREA OF PLANE

general formula =

$\sin( \alpha ) e \times a$

Answer 2

The Magnetic Flux through a unit area perpendicular to the field is Magnetic Flux Density. It is defined as the amount of Magnetic flux passing through per unit area of a section which is perpendicular to the direction of field.

Hope it helps you!