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For the series LCR circuit shown in the ...

For the series `LCR` circuit shown in the figure, what is the resonance frequency and the amplitude of the current at the resonating frequency

A

`2500 rad s^(-1)` and `5sqrt(2) A`

B

`2500 rad s^(-1)` and `5 A`

C

`2500 rad s^(-1)` and `5/(sqrt(2)) A`

D

`25 rad s^(-1)` and `5sqrt(2) A`

Text Solution

Verified by Experts

The correct Answer is:
B
Resonance frequency
`omega=1/(sqrt(LC))=1/(sqrt(8xx10^(-3)xx20xx10^(-6)))`
`=2500rad//s`
Resonance current `=V/R=220/44=5A`
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