Physics And Measurement Question 242
Question: Dimensions of ‘resistance’ are same as (where h is Planck’s constant and e is charge)
Options:
A) $ \frac{h}{e} $
B) $ \frac{h^{2}}{e} $
C) $ \frac{h}{e^{2}} $
D) $ \frac{h^{2}}{e^{2}} $
Show Answer
Answer:
Correct Answer: C
Solution:
[c] $ \frac{h}{e^{2}}=\frac{ML^{2}{{T}^{-1}}}{{{(AT)}^{2}}}=ML^{2}{{T}^{-3}}{{A}^{-2}} $ = Resistance (ohm)
