Question

can anyone please help me complete this

Answer 1

Heya

Drift velocity is given by

v = I/nqA

I is current

n is charge density

q is charge on each carrier(electrons)

= 1.6×10^-9

A is cross sectional area

v = 3.2/(2×10^28)(1.6×10^-19)(1×10^-7)

= 3.2/ 3.2×10^(28-19-7)

= 1/10^2

= 1×10^-2

Hope it helps!