Question

When the current i is flowing through a conductor, the drift velocity is v. If 2i current is flowed through the same metal but having double the area of cross-section, then the drift velocity will be ​

Answer 1

Answer:

The drift velocity, v

d

=

ne

J

(where, J is current density =

A

i

)

So, v

d

∝j

∴J

1

=

A

i

and J

2

=

2A

2i

=

A

i

=J

1

So, (v

d

)

1

=(v

d

)

2

=v.

Explanation:

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