Consider two wires, both 2.0 cm long. Wire A is 1.0 mm in diameter and wire B is 2.0 mm in diameter. Both wires have the same electric field acting in them. How do the magnitudes of the currents in these wires compare?
  1. $$I_A = 4 \times I_B$$
  2. $$I_A = 2 \times I_B$$
  3. $$I_A = I_B$$
  4. $$I_A = \frac{1}{2} \times I_B$$
  5. $$I_A = \frac{1}{4} \times I_B$$
  6. other (specify)