Go To Your Study Dashboard

Get Answers to all your Questions

header-bg

IMG_20190114_081625.jpg

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

a) $l=\sqrt{\frac{nq^2}{\epsilon k_BT}}$

b) $l=\sqrt{\frac{\epsilon k_BT}{nq^2}}$

c) $l=\sqrt{\frac{q^2}{\epsilon n^{2/3}k_BT}}$

d) $l=\sqrt{\frac{q^2}{\epsilon n^{1/3}k_BT}}$

Answers (3)

best_answer

by checking dimension we can find b is right

Posted by

himanshu.meshram

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

d is also right

Posted by

himanshu.meshram

View full answer

B&c is right

Chek it dimensoly

Posted by

Vishal

View full answer

Similar Questions

Trending Articles/News

anam-khan

JEE Advanced 2024: Chemical engineering cut-offs at IITs; know opening, closing ranks

anam-khan

IIT JEE Mains Result 2024 Session 2: How is overall merit list prepared?

anam-khan

JEE Mains Session 2 result 2024 soon; List of top NITs in India

Latest Question