Question

If $\phi$ is phase difference between current and voltage the wattless component of current is

• A. $I\,\cos \phi$
• B. $I\sin \phi$
• C. $I\tan \phi$
• D. $I{{\cos }^{2}}\phi$

Answer 1

Answer: (B)

$I\sin \phi$

Answer 2

${{I}_{v}}\sin \phi$ component of current gives no power consumption and hence, is called wattles current.