Dimensional formula of resistivity is

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The formula for resistivity $(\rho)$ is given by $\rho = \frac{R A}{l}$,where $R$ is resistance,$A$ is area,and $l$ is length.Resistance $R = \fra

Vedclass · Accepted Answer

$[M L^3 A^{-2} T^{-3}]$

Vedclass · Answer

(B) The formula for resistivity $(ho)$ is given by $ho = \frac{R A}{l}$,where $R$ is resistance,$A$ is area,and $l$ is length.Resistance $R = \frac{V}{I} = \frac{W}{qI} = \frac{[M L^2 T^{-2}]}{[A T] [A]} = [M L^2 T^{-3} A^{-2}]$.Area $A = [L^2]$.Length $l = [L]$.Substituting these into the formula: $ho = \frac{[M L^2 T^{-3} A^{-2}] 	imes [L^2]}{[L]} = [M L^3 T^{-3} A^{-2}]$.

Similar Questions

Write the dimensional formula of power. Is power a vector or scalar quantity?

Write the $CGS$ and $MKS$ units of the universal gravitational constant $G$. Also,write the dimensional formula of $G$.

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

Dimensions of time in power are

List at least six physical quantities that have the dimensional formula $ML^2T^{-2}$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module