Which of the following is used together with an inductor to make a tuned circuit?

Which of the following is used together with an inductor to make a tuned circuit?

• A. Resistor
• B. Zener diode
• C. Potentiometer
• D. Capacitor

Answer: (D)

A tuned circuit is typically created by combining an inductor with a capacitor. This configuration enables the circuit to resonate at a specific frequency, allowing it to select or filter particular frequencies from a broader range of signals. The inductor stores energy in a magnetic field when an electric current passes through it, while the capacitor stores energy in an electric field. When these two components are used together, they can create oscillations at their resonant frequency, determined by the values of the inductor and capacitor. This is a fundamental principle in radio circuits, enabling tuning to desired frequencies for effective communication. The other components listed, such as a resistor, Zener diode, and potentiometer, serve different purposes in circuits, such as limiting current, providing voltage regulation, or allowing for variable resistance. However, they do not create the resonance effect necessary to form a tuned circuit as an inductor and capacitor do.

A tuned circuit is typically created by combining an inductor with a capacitor. This configuration enables the circuit to resonate at a specific frequency, allowing it to select or filter particular frequencies from a broader range of signals.

The inductor stores energy in a magnetic field when an electric current passes through it, while the capacitor stores energy in an electric field. When these two components are used together, they can create oscillations at their resonant frequency, determined by the values of the inductor and capacitor. This is a fundamental principle in radio circuits, enabling tuning to desired frequencies for effective communication.

The other components listed, such as a resistor, Zener diode, and potentiometer, serve different purposes in circuits, such as limiting current, providing voltage regulation, or allowing for variable resistance. However, they do not create the resonance effect necessary to form a tuned circuit as an inductor and capacitor do.