LC circuit

Electricity and Magnetism Level 2

The above is a schematic diagram of an electric wave receiver circuit, where the electric waves are received through the resonance between the alternating current flowing into the LC circuit and the alternating current flowing into the antenna. Which of the following statements is correct?

a) The antenna can only receive an electric wave with a particular frequency.

b) The alternating current of a particular frequency can only flow into the LC circuit.

c) If we lower the capacity of the capacitor, then the natural frequency of the LC circuit increases.


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