Which of the following system of units is not based on units of mass, length and time alone

Precision in measurement depends on

Given the equation $P = \frac{a}{V} - \frac{b}{V^2} + cT$, where $P$ is pressure, $V$ is volume, and $T$ is temperature. What are the dimensions of $abc$?

A physical quantity u is given by the relation $u = \frac{{{B^2}}}{{2{{\rm{\mu }}_0}}}$ here, B=magnetic field strength ${{\rm{\mu }}_0} =$ magnetic permeability of vacuum.

$1kWh\; =$

The damping force of an oscillating particle is observed to be proportional to velocity. The constant of proportionality can be measured in

If the units of mass, length and time are doubled, unit of angular momentum will be

If the units of M and L are increased three times, then the unit of energy will be increased by

A calorie is a unit of heat and equal 4.2 J. Suppose we employ a system of units in which the unit of mass is $\alpha$ kg, the unit of length is $\beta$ metre and the unit of time is γ sec. In this new system. 1 calorie =

The unit of potential energy is

Which does not have the same unit as others