Analogue signal processing (AQA A-Level Physics): Flashcards

Circuit that selects specific frequencies from AC signal

Inductor (L) and capacitor (C) in parallel

Electrostatic potential energy

Magnetic field energy

$f_0 = \frac{1}{2\pi\sqrt{LC}}$

When external emf matches natural frequency

Frequency range where energy ≥50% of maximum

$Q = \frac{f_0}{f_B}$

Narrow bandwidth with less noise

Reduces amplitude and broadens peak