SSC JE Electrical Engineering 2017 Set 1 Paper

for R – L circuit
$\mathit{V}=\sqrt{{\mathit{V}}_{\mathit{R}}^2+{\mathit{V}}_{\mathit{L}}^2}$
$\mathit{\varphi }={\tan }^{-1}\left(\frac{{\mathit{V}}_{\mathit{L}}}{{\mathit{V}}_{\mathit{R}}}\right)$
$\cos \mathit{\varphi }=\left(\frac{{\mathit{V}}_{\mathit{R}}}{\mathit{V}}\right)$lag
In resistive circuit voltage and current both are in same phase but in inductive circuit current is lag by voltage.
So R – L current is laging with voltage.