Two wires have a nearly equal electron number density. Assume that the electric field in each wire points directly along the wire, that electric fields in the two wires have the same magnitude, but that the conductivity in wire A is twice that in wire B. This means that the drift velocity in wire A is b times that in wire B, where b is
A. 4
B. 2
C. 1
D. 1/2
E. 1/4
F. Impossible to determine from the given information
B. 2
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