Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Alternating Current

Question:

What happens to the quality factor of the LCR circuit if its inductance is made four times and its resistance is halved?

Options:

becomes double

becomes half

becomes quadruple

stays the same

Correct Answer:

becomes quadruple

Explanation:

Quality factor :Q = [1/R] \(\sqrt {L/C }\)

Q ∝ [1/R] [\(\sqrt { L}\)]