In the microscopic view of electrical conduction in a copper wire, electrons are accelerated by an...
In the microscopic view of electrical conduction in a copper wire, electrons are accelerated by an electric field and then collide with metal atoms after traveling about 3.5× 10 −8 m 3.5×10−8m . If an electron begins from rest and is accelerated by a field of 0.045 N/C N/C , what is its speed when it collides with a metal atom?
Homework Answers
Work, W = Fd = qE d
qE d = 0.5 mv^2
Velocity, v = sqrt(2q Ed/m)
v = sqrt[2 x 1.6 x 10^-19 x 0.045 x 3.5 x 10^-8/9.1 x 10^-31)
v = 23.53 m/s
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