Question

(1) The capacitor of an oscillatory circuit is enclosed in a container. When the container is evacuated, the resonance frequency of the circuit is 10KHz. When the container is filled with a gas, the resonance frequency changes by 50Hz . What is the dielectric constant of the gas?
(2) A radio transmitter transmits at 830KHz. At a certain distance from the transmitter magnetic field has amplitude 4.82 x 10⁻¹¹T. What is the electric field and the wavelength of the radio transmitter?

Answer 1

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