Driven LRC Circuits and Resonance

Description
Most of us must have walked past a metal detector in cinema halls or airport. The mechanism that is responsible for its functioning is explained with the help of resonance in LCR circuits. The video also shows the current- frequency graphs where the resonant frequency is changed by adjusting the values of resistance,capacitance, and inductance.

Prof. Walter Lewin, 8.02 Electricity and Magnetism, Massachusetts Institute of Technology: MIT OpenCourseWare), http://ocw.mit.edu (Accessed June 24, 2011). License: Creative Commons BY-NC-SA: http://ocw.mit.edu/terms/#cc