A2There is one conducting sheet in the plane Z, o and another in the plane = . The lower sheet (i.e. = 0) carries charge per unit area and the upper one carries , where > 0. Also, the lower sheet carries current per unit length and the upper one carries . The sheets extend to in and . (a) Determine the scalar potential and the vector potential in the region between the two sheets. (b) suppose that an electron is ejected from the lower sheet with velocity = ₀ . What is the minimum value of ₀ required such that the electron will reach the upper sheet?