If the value of resistance is $10.845 \, \Omega$ and the value of current is $3.23 \, \text{A}$,the value of potential with significant figures would be ........... $V$.

Find the area of a rectangle with dimensions $1.23 \ cm$ and $2.345 \ cm$ in $cm^2$.

The mass and volume of a body are $4.237 \ g$ and $2.5 \ cm^3$,respectively. The density of the material of the body in correct significant figures is $:-$ (in $g \ cm^{-3}$)

$A$ person measures the mass of $3$ different particles as $435.42 \ g$,$226.3 \ g$,and $0.125 \ g$. According to the rules for arithmetic operations with significant figures,the sum of the masses of the $3$ particles will be: (in $g$)

The radius of a disc is $1.2 \; cm$. Its area according to the concept of significant figures will be given by

The radius of a circle is $2.12 \ m$. Its area according to the rule of significant figures is ......... $m^2$.