Which of the following is a dimension of volt
$J/C$
$N/C$
$wb/m^2$
$A/C$
What is physical quantity ? Write its types.
The $SI$ unit of momentum is
In a practical unit if the unit of mass becomes double and that of unit of time becomes half, then $8$ joule will be equal to .............. unit of work.
Which of the following is not a unit of time
$Erg - {m^{ - 1}}$ can be the unit of measure for