A tuned amplifier circuit is used to generate a carrier frequency of 2MHz for the amplitude modulation. The value of `sqrt(LC)` is

Options

A. `(1)/(3 pi xx 10^(6))`
B. `(1)/(2pi xx 10^(6))`
C. `(1)/(4 pi xx 10^(6))`
D. `(1)/(2 pi xx 10^(6))`

Answer

C

Explanation

`upsilon=(1)/(2pi sqrt(LC))`
`:.sqrt(LC)= (1)/(2 pi upsilon)`
Here, `upsilon= 2 MHz = 2 xx10^(6)`Hz
`:.sqrt(LC)=(1)/(2pixx2xx10^(6))=(1)/(4 pi xx10^(6))`