Question

If $L$ denotes the inductance of an inductor through which a current $I$ is flowing, then the dimensional formula of $L I^{2}$ is

• A. $\left[ MLT ^{-2}\right]$
• B. $\left[ ML ^{2} T ^{-2}\right]$
• C. $\left[ M ^{2} L ^{2} T ^{-2}\right]$
• D. not expressible in terms of $M,\, L,\, T$

Answer 1

Answer: (B)

$L I^{2}$ represents energy, i. e., $\left[ ML ^{2} T ^{-2}\right]$