A length -scale (l) depends on the permittivity (epsilon) of a dielectric material, Boltzmann constant (k_(B)), the absolute temperature (T), the number pr unit volume (n) of certain charged paticles, and the charge (q) carried by each of the particles. Which of the following expression for l is dimensionally correct?

A length -scale (l) depends on the permittivity (epsilon) of a dielect

1.	A length -scale (l) depends on the permittivity (epsilon) of a dielectric material, Boltzmann constant (k_(B)), the absolute temperature (T), the number pr unit volume (n) of certain charged paticles, and the charge (q) carried by each of the particles. Which of the following expression for l is dimensionally correct?
Answer» `l = SQRT((nq^(2))/(epsilonk_(B)T))` `l = sqrt((epsilonk_(B)T)/(nq^(2))` `l = sqrt((q^(2))/(epsilon^(2/3)k_(B)T))` `l = sqrt((q^(2))/(epsilonk_(B)T))` ANSWER :B