Which component is combined with an inductor to form a resonant circuit?

Which component is combined with an inductor to form a resonant circuit?

• A. Resistor
• B. Capacitor
• C. Diode
• D. Transistor

Answer: (B)

A resonant circuit, also known as a tuned circuit, is created when an inductor and a capacitor are combined. This configuration allows the circuit to resonate at a specific frequency, which is determined by the values of the inductor and the capacitor. When the circuit is energized, it can store energy in the magnetic field of the inductor and the electric field of the capacitor alternately, resulting in oscillations at the resonant frequency. The resonant frequency can be calculated using the formula: \[ f_0 = \frac{1}{2\pi\sqrt{LC}} \] where \( f_0 \) is the resonant frequency, \( L \) is the inductance in henries, and \( C \) is the capacitance in farads. This characteristic makes resonant circuits essential in radio frequency applications, including tuning and filtering signals. The other components listed, such as resistors, diodes, and transistors, do not create resonance when paired with inductors. Resistors can affect the quality factor of the circuit but do not contribute to resonance. Diodes and transistors serve different functions in circuits, such as rectification and amplification, and do not participate in forming a resonant circuit with induct

A resonant circuit, also known as a tuned circuit, is created when an inductor and a capacitor are combined. This configuration allows the circuit to resonate at a specific frequency, which is determined by the values of the inductor and the capacitor. When the circuit is energized, it can store energy in the magnetic field of the inductor and the electric field of the capacitor alternately, resulting in oscillations at the resonant frequency.

The resonant frequency can be calculated using the formula:

[ f_0 = \frac{1}{2\pi\sqrt{LC}} ]

where ( f_0 ) is the resonant frequency, ( L ) is the inductance in henries, and ( C ) is the capacitance in farads. This characteristic makes resonant circuits essential in radio frequency applications, including tuning and filtering signals.

The other components listed, such as resistors, diodes, and transistors, do not create resonance when paired with inductors. Resistors can affect the quality factor of the circuit but do not contribute to resonance. Diodes and transistors serve different functions in circuits, such as rectification and amplification, and do not participate in forming a resonant circuit with induct