2

Please give only typed answer

The figure shows wire section 1 of diameter Dj = 5.00R and wire section 2 of diameter Dy = 4.0OR, connected by a tapered section. The wire is copper and carries a current. Assume that the current is uniformly distributed across any cross-sectional area through the wire's width. The electric potential change Valong the length L = 2.10 m shown in section 2 is 15.0 pV. The number of charge carriers per unit volume is 8,80 x 1025 m . What is the drift speed of the conduction electrons in section 1? D (2) (1) Number Units