Electric current, drift velocity, mobility
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See all →- Column - I gives certain physical terms associated with flow of current through a metallic conductor. Column - II gives some mathematical relations involving electrical quantities. Match Column - I and Column - II with appropriate relations.Column -… Answer: 1. (A)-(R), (B)-(S), (C)-(P), (D)-(Q) (A) Drift velocity v_d=aτ=eE/mτ : R. (B) Resistivity ρ=E/J : S. (C) From ρ=m/ne²τ , relaxation... 1
- A charged particle having drift velocity of 7.5×10^-4 m s^-1 in an electric field of 3×10^-10 V m^-1, has a mobility in m^2 V^-1 s^-1 of : Answer: 2. 2.5×10⁶ Mobility is drift velocity per unit electric field: μ=v_d/E . μ=frac7.5×10⁻⁴3×10⁻¹⁰=2.5×10⁶\ m²V⁻¹s⁻¹ Answer: option 2. 1