A Wire's Diameter Decreases Linearly from D_i to D_f =

Multiple Choice

A wire's diameter decreases linearly from d_i to d_f = d_i/2. If the wire has a current of I at the end whose diameter is d_i, then the current at the end whose diameter is d_i/2

A) decreases by a factor of 2.
B) increases by a factor of 2.
C) decreases by a factor of 4.
D) remains the same.