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Question

Physics Question on LCR Circuit

Time constant of LC circuit is

A

12πLC \frac{ 1}{ 2 \pi LC}

B

12πL2C2 \frac{ 1}{ 2 \pi L^2C^2}

C

LC2π \frac{LC}{ 2 \pi}

D

2πLC 2 \pi \sqrt{ LC}

Answer

2πLC 2 \pi \sqrt{ LC}

Explanation

Solution

For a L-C circuit resonant requency 12πLC\frac{ 1}{ 2 \pi \sqrt{LC}} Therefore, time constant is 2πLC 2 \pi \sqrt{ LC}