Wire A and Wire B are each carrying the same current. If the diameter of Wire A is half that of Wire B, how does the drift velocity vdA in Wire A compare to that in Wire B?
a. vdA = 4 vdB
c. vdA = vdB /2
b. vdA = 2 vdB
d. vdA = vdB /4
A
Physics & Space Science
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