RC and RL filters: cut-off frequency and gain
A sine of varying frequency passes through low-pass and high-pass RC or RL filters; gain falls 3 dB at f_c and the phase shifts by 45 degrees.
About this experiment
| Subject | Physics |
|---|---|
| Class | 12 |
| Chapter | 7. Alternating Current |
| NCERT section | 7.5 |
| Level | Advanced (JEE / Olympiad) |
| Time | about 14 minutes |
| Access | Included in a PractiSci plan |
What you do in the lab
Change the controls and watch the physics behave in real time in 3D. Live readouts and graphs show the numbers behind it, and the Learn tab has the theory, procedure, observations and viva questions. Works on a phone or a laptop, in English and Hindi.
Topics: filter · cut-off frequency · Bode plot · RC · RL