P27_024.PDF

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Chapter 27 - 27.24
24. (a) i = V/R =35 . 8V / 935 Ω = 3 . 83
×
10 2 A.
(b) J = i/A =(3 . 83
×
10 2 A) / (3 . 50
×
10 4 m 2 ) = 109 A / m 2 .
(c) v d = J/ne = (109 A / m 2 ) / [(5 . 33
×
10 22 / m 3 )(1 . 60
×
10 19 C)] = 1 . 28
×
10 2 m / s.
(d) E = V/L =35 . 8V / 0 . 158m = 227 V / m .
Zgłoś jeśli naruszono regulamin