Indicate for each of the case in the figure below if the current is going to the
ID: 1548426 • Letter: I
Question
Indicate for each of the case in the figure below if the current is going to the right or to the left five largest to current. Use the arrow length as an indication of and rank the five cases from smallest the relative s of the carriers. If for two or more cases the current is the same, just rank them the same 4) Consider that each circle inside the wire sections in the figure in problem 3) above represents 26 charge carriers, each with a charge of 1.6xl019 C in magnitude (the sign of the charge is the one in the circles). Also consider the short arrows represent a drift velocity of9.2x10 m/s while the long arrows represent a drift velocity of 3x10 m/s. If the segment's volume is 1.7m, calculate the current density in each of the segments.Explanation / Answer
1. 5 charges
2. 4 charges
3. (4 - 1) = 3
4. 3 - (-2) = 5
5. - 5 = - 5
1 = 4 = 5 > 2 > 3
4) Vd = J / n q
9.2 x 10^-4 = J / (2 x 10^26 x 1.6 x 10^-19)
J = 29440 A/m^2
for cases: 1, 2, 3 and 5
for Case 4:
3 x 10^-3 = J / (2 x 10^26 x 1.6 x 10^-19)
J = 72000 A /m^2