Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Alternating Current

Question:

If the capacitance of an LCR circuit is made 9 times its original value, how do to expect the quality factor to change?

Options:

becomes 9 times

becomes 3 times

becomes 1/9 times as it is inversely proportional to the capacitance

becomes 1/3 times

Correct Answer:

becomes 1/3 times

Explanation:

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

Q ∝ 1/\(\sqrt { C}\)