Two electric circuits $A$ and $B$ are shown in the figure. The ratio of power factor of circuit $B$ to that of circuit $A$ is

• A

  $\sqrt{3}: 2$
• Correct answer
  B

  $\sqrt{2}: 1$
• C

  $2: 3$
• D

  $4: 3$

Hence, the correct answer is option: 'B'.