Question

A transmitter transmits at a wavelength of $300m$. A condenser of capacitance $2.4\mu F$ is being used. The value of the inductance for the resonant circuit is approximately

• A. ${10}^{-4}H$
• B. ${10}^{-6}H$
• C. ${10}^{-8}H$
• D. ${10}^{-10}H$

Answer 1

The correct option is C ${10}^{-8}H$

$f=\frac{c}{\lambda }=3\times {10}^8/300$

$\omega =2\pi f=\frac{1}{\sqrt{LC}}$

$L=\frac{1}{C4{\pi }^2{f}^2}={10}^{-8}H$