jee-main 2006 Q52

jee-main · India Not Maths

If the ratio of the concentration of electrons to that of holes in a semiconductor is $\frac{7}{5}$ and the ratio of currents is $\frac{7}{4}$, then what is the ratio of their drift velocities?
(1) $\frac{4}{7}$
(2) $\frac{5}{8}$
(3) $\frac{4}{5}$
(4) $\frac{5}{4}$

If the ratio of the concentration of electrons to that of holes in a semiconductor is $\frac{7}{5}$ and the ratio of currents is $\frac{7}{4}$, then what is the ratio of their drift velocities?\\
(1) $\frac{4}{7}$\\
(2) $\frac{5}{8}$\\
(3) $\frac{4}{5}$\\
(4) $\frac{5}{4}$

Paper Questions

Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q19 Q20 Q21 Q22 Q23 Q38 Q39 Q40 Q46 Q51 Q52 Q53