A charged particle having drift velocity of 7.5 × 10⁻⁴ m s⁻¹ in an electric field of 3 × 10⁻¹⁰ Vm⁻¹, has a mobility in m² V⁻¹ s⁻¹ of :

Question

Question

This question was previously asked in

NEET 2020 Official Paper (Held On: 13 September, 2020)

Answer 1

Explanation:

We know that in terms of drift velocity (v_d) and electric field (E), Mobility is defined as-

μ = ----- (1)

Given,

vd = 7.5 × 10−4 m s−1 , E = 3 × 10−10 Vm−1

∴ From equation (1) we have

μ

= 2.5 × 10⁶m² V^-1 s^-1

Hence Option 4) is the correct choice.