Figure shows cross-section view of an infinite cylindrical wire with a cylindrical cavity, current density is uniform 𝐽 = -𝑗0k̂ as shown in figure.

Select all that apply

• Option A

  Field inside cavity is uniform.

• Option B

  Field inside cavity is along 𝑎 .

• Option C

  Field inside cavity is perpendicular to 𝑎 .

• Option D

  If an electron is projected with velocity v₀ 𝑗 it will move undeviated before colliding with cavity wall.