Physics - Unit & Dimension Question with Solution | TestHub

$L=\frac{\varphi }{i}$ gives henry
$=\frac{\text{ weber }}{\text{ ampere }};e$
$=-L\frac{di}{dt}$ gives henry
$=\frac{\text{ volt-second }}{\text{ ampere }};U$
$=\frac{1}{2}L{i}^2$ gives henry
$=\frac{\text{ joule }}{(\text{ ampere }{)}^2}$;
$U=i^{2}Rt$ with $U=\frac{1}{2}L{i}^2$ gives $L=Rt$, i.e. henry = ohm-second.
All four are correct.