The measured drift velocity of the South American continent is 1.45 cm/yr. Convert this value to mm/day.
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Answer:
Given
I=1A
A=2 mm
2
=2×10
−6
m
2
μ
e
=8.5×10
22
cm
−3
=8.5×10
28
m
−3
The current flowing through the Cu wire is
I=μ
e
.e.A.v
d
where, e is the charge on electron and v
d
is the drift velocity of electrons.
∴v
d
=
μ
e
.e.A
I
∴v
d
=
(8.5×10
28
)(1.6×10
−19
)(2×10
−6
)
1
∴v
d
=
27.2×10
3
1
∴v
d
=0.03676×10
−3
ms
−1
∴v
d
≈0.036 mms
−1
Step-by-step explanation:
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