P27_011.PDF

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11. We use
v
d
=
J/ne
=
i/Ane.
Thus,
t
=
=
=
L
L
LAne
=
=
v
d
i/Ane
i
(0.85 m)(0.21
×
10
−4
m
2
)(8.47
×
10
28
/
m
3
)(1.60
×
10
−19
C)
300 A
2
8.1
×
10 s = 13 min
.
Zgłoś jeśli naruszono regulamin