Acylindrical wire of radius 1 mm and length l-100 meters consists of uniform metal with conductivity σ . the current density j-oe (current area) assume the potential difference between the ends of the wire is 2 volt ( vpofnt 2volts ). the ungrounded end of the wire is at point2. the current pointpointli flowing through the wire is 1 amp and positive charge flowing toward point2 will be defined as negative current. from symmetry along the axis of the wire, the electric field points along the wire axis and does not vary over the length of the wire. all potentials will be measured relative to opposite end of the wire, pointl (which is taken as ground) determine the magnitude of the electric field in the wire. what is the magnitude and toward which point is the vector electric field directed? (units volts/meter) (we will define the direction from point1 to point2 as the positive direction) a. b. determine the current density in the wire. what is the magnitude and toward which point is the vector directed? (units amps m') determine the resistivity of this metal rho determine the resistance of the full length of wire r area of the wire). (units ohms) -. (units ohm meters) d. (a is the cross sectional e. determine the electric potential at the mid-point of the wire. (units volts) f. determine the difference in electric potential between two points at lengths 60 meters and 50 meters from point 1. v() (units volts)