For an AC circuit, a phase diagram shows emf on X-axis, and current I is at angle θ to emf. Angle is phase angle θ between emf and current. Current I is resolved into two components, I cos θ is along emf on X-axis. I sine is along perpendicular direction to emf.

(A) Component I cos θ will draw the power from the source
(B) Component I sin θ will draw the power from the source
(C) I cos θ is called the powerless current
(D) I sin θ is called the powerless current

Choose the correct answer from the options given below:

(A) and (D) only

The correct answer is Option (4) → (A) and (D) only