First slide

Drift velocity

Question

Drift velocity $ν_{d}$ varies with the intensity of electric field as per the relation

Easy

A

$ν_{d} \propto E$
B

$ν_{d} \propto \frac{1}{E}$
C

$ν_{d} = c o n s \tan t$
D

$ν_{d} \propto E^{2}$

Solution

$ν_{d} = \frac{e}{m} \times \frac{V}{l} τ o r ν_{d} = \frac{e}{m} . \frac{E l}{l} τ (Sin c e V = E l)$
$∴ ν_{d} \propto E$

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