A e.m.f. $e_s=50 \sin 314t$ is applied across a pure capacitor of 637 μF. The instantaneous current I is:

$10 \cos 314t\, A$ $50 \cos 314t\, A$ $20 \cos 314t\, A$ $20 \sin 314t\, A$

$10 \cos 314t\, A$

The correct answer is Option (1) → $10 \cos 314t\, A$