Question

Please answer part C

(7%) Problem 14: An unknown wire in a circuit has a circular cross-section with diameter 3.5 mm. It carries a current of 8.9 mA. rent dens in milliamperes per square centimeter, in this wire? 33% Part (a) What is the J= 92.505 J= 92.51 ✓ Correct! 33% Part (b) If you assume the drift velocity in this wire is 1 x 10-2 cm/s, what is the density of charge carries per cubic centimeter? n=5.77434 * 1019 n= 5.774E+19 Correct! > A 33% Part (c) If the conductivity in this wire is 3.5 x 106 0-1 m-?, what is the average time between collisions, in nanoseconds? T=

Answer 1

Xro-31+6+38-25 time isa Average collision 2=mo nez = 9.1X10-31x3.5X106 In from 5.774x129x100 X16X10-19)? part b) 6 9.1 x 3-5 5.774X(16)? = 9.183-S XIÓ .S 6 tuy 14.78144 = 2.1547281012 second -0.002155 Xrd 9 second R=0.00216 nanosecond