Physics And Measurement Question 43

Question: If $ L $ and $ R $ are respectively the inductance and resistance, then the dimensions of $ \frac{L}{R} $ will be

[CPMT 1986; CBSE PMT 1988; Roorkee 1995; MP PET/PMT 1998; DCE 2002]

Options:

A) $ M^{0}L^{0}{{T}^{-1}} $

B) $ M^{0}LT^{0} $

C) $ M^{0}L^{0}T $

D) Cannot be represented in terms of $ M,L $ and T

Show Answer

Answer:

Correct Answer: C

Solution:

$ [x]=[bt^{2}]\Rightarrow [b]=[x/t^{2}]=km/s^{2} $ = Time constant



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