Q. The equation of alternating current is $I = I_{0}e^{- t/CR}$, where $t$ is time, $C$ is capacitance and $R$ is resistance of coil, then the dimensions of $C\ R$ is

A) $\lbrack MLT^{- 1}\rbrack$
B) $\lbrack M^{0}LT\rbrack$
C) $\lbrack M^{0}L^{0}T\rbrack$
D) None of these
Explanation

$CR$ is known as time constant $CR = \lbrack T\rbrack$

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.