Unit of Stefan's constant is
$J\,{s^{ - 1}}$
$J\,{m^{ - 2}}{s^{ - 1}}{K^{ - 4}}$
$J\,{m^{ - 2}}$
$J\,s$
Which of the following is not the unit of energy
The unit of self inductance of a coil is
What is $1$ radian ? What is $1$ steradian ?
The unit of Stefan-Boltzmann s constant $(\sigma )$ is
The dimension of Planck constant equals to that of