
Frank A. answered 03/29/21
A quarter century of teaching IB, GCSE, AP physics and pharmacy math.
Use the formula V=I/nAq
V=drift speed
I=current=4.50A
n=charge density=2.7×6.02x1023×106 charge carriers/m3.
A=cross-section=6.00×10-6
q=charge/electron=1.602×10-19
Your calculator can do the rest.
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Mr. A