For Educators · Filter Designer
Filter Designer for a heating element
Built for educators teaching it to a class. Drop a live demo into a lecture or assign it as a shareable link — no lab installs. Simulate a heating element live below — adjust the inputs and watch it respond, right in your browser.
Analog Filter DesignerLive
RC & RLC frequency response
Controls
Presets
Passive filters shape a signal's frequency content with resistors, capacitors, and inductors. An RC low-pass or high-pass has a cutoff at 1/(2πRC) where the response drops 3 dB; an RLC bandpass resonates at 1/(2π√(LC)) with sharpness set by its quality factor Q.
Data Inspector
Cutoff fc1.6 kHz
Resonance f₀5.0 kHz
Quality factor Q0.32
Governing equation
Reading this result: Low-pass: signals below the 1.6 kHz corner pass, above it they roll off at 20 dB/decade, and the response is exactly 3 dB down right at the corner.
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Frequently asked questions
- Is this good for educators?
- Yes — this version of "Filter Designer for a heating element" is framed for educators teaching it to a class. Drop a live demo into a lecture or assign it as a shareable link — no lab installs.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.