Question

the drift velocity does not depend upon
(a)cross section of the wire
(b)length of wire
(c)number of free electrons
(d)magnitude of current
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Answer 1

Answer:

(a)................

Answer 2

The correct option is (b) "length of wire".

Explanation:

The drift velocity is given by the formula as follows :

$v_d=\dfrac{I}{neA}$

I is electric current

n is number of free electrons

e is charge on electron

A is area of cross section

Out of given options, the option in which drift velocity does not depend is length off wire. Hence, the correct option is (b) "length of wire".

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Drift velocity

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