Question

What is the dimensions of impedance ?

• A. $L^2T^{-3}A^{-2}$
• B. $M^{-1}L^{-2}T^3A^2$
• C. $ML^3T^{-3}A^2$
• D. $M^{-1}L^{-3}T^3A^2$

Answer 1

Answer: (A)

Impedance has the same dimensions as that of a resistance
$\therefore $ Resistance $R =\frac{\text { Voltage } V }{\text { current } I } \%$
$=\frac{\left[M L^{2} T^{-3} I^{-1}\right]}{[1]}=\left[M L^{2} T^{-3} A^{-2}\right]$