Question

pls help me..........
.
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Answer 1

yes of course........

Answer 2

Explanation:

We know,

E=

d

V

Given,

V=5v

d=10cm=0.1m

V

d

=2.5×10

−2

cms

−1

=2.5×10

−4

ms

−1

∴E=

0.1

5

=50Vm

−1

Mobility of an electron is it's drift velocity per unit electric field.

∴μ=

E

V

d

μ=

50

2.5×10

−4

=5×10

−6

m

2

V

−1

s

−1

∴ Option B is correct.