What is the magnetic vector potential

Magnetic vector potential, A, is the vector quantity in classical electromagnetism defined so that its curl is equal to the magnetic field: {\textstyle \nabla \times \mathbf {A} =\mathbf {B} \, }. Together with the electric potential φ, the magnetic vector potential can be used to specify the electric field E as well.

Explanation:

Plz give me brainliest worked hard thank u

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray