Pls answer both !:(

3. [-/1 Points] DETAILS SERCP11 17.2.P.007.MI. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A 330-km-long high-voltage transmission line 2.0 cm in diameter carries a steady current of 1,020 A. If the conductor is copper with a free charge density of 8.5 x 1028 electrons per cubic meter, how many years does it take one electron to travel the full length of the cable? (Use 3.156 x 107 for the number of seconds in a year.) Need Help? Read It Master It Submit Answer 4. [-/1 Points] DETAILS SERCP11 17.4.P.012. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Germanium is a semiconducting metal with a resistivity of 0.460 0 . m. HINT (a) Determine the current per unit area through a 4.12 V germanium junction with a length of 1.49 mm. (Enter your answer in A/m2) A /m 2 (b) Find the current (in A) through the junction if its cross-sectional area is 2.75 x 10-5 m2