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A condenser of capacity 20muF is first c...

A condenser of capacity 20`mu`F is first charged and then discharged through a 10mH inductance. Neglecting the resistance of the coil, the frequency of the resulting vibrations will be

A

364 cycles/s

B

35.6 cycles/s

C

`365 xx 10^(3)` cycles/s

D

3.56 cycles/s

Text Solution

Verified by Experts

The correct Answer is:
A
`omega` = 1/`sqrt LC`
`therefore` f = `1/2pi sqrt LC` = 1/`2pi``sqrt 20 xx 10^(-6) xx 10 xx 10^(-3)` = 356 Hz
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