Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Alternating Current

Question:

Wattless current is the current in a purely inductive or capacitive circuit for which power factor is

Options:

1

0.707

zero

1.41

Correct Answer:

zero

Explanation:

$ \text{For a purely inductive or capacitive circuit the phase difference between current and voltage is }90^o$

$ \Rightarrow Power Factor = cos\phi = 0$