SSC JE Electrical Engineering 2017 Set 3 Paper

For a highly inductive circuit, current flow through inductor lags voltage.$\cos {\mathit{\varphi }}_1=\frac{\mathit{R}}{\sqrt{{\mathit{R}}^2+{{\mathit{X}}^2}_{\mathit{L}}}}$
If small capacitor is added in the circuit, then capacitor supply lagging reactive power and phase angle between voltage and current decrease.$\uparrow \cos {\mathit{\varphi }}_2=\frac{\mathit{R}}{\sqrt{{\mathit{R}}^2+{\left({{\mathit{X}}^2}_{\mathit{L}}-{\mathit{X}}_{\mathit{C}}\right)}^2\downarrow }}$
$\cos {\mathit{\varphi }}_2\uparrow$ then ${\mathit{\varphi }}_2$ decreases

So angle between voltage and current will decrease.