Homework for the damped oscillator

  1. Show that a lightly damped vibrator loses about $2\pi Q$ of its energy in one cycle.
  2. A capacitor in a series LCR circuit is charged, and then the charger is switched out of the circuit. Find the time and the number of cycles for the charge on the capacitor to decay to 20% of its initial value.


Go Back to the Waves Course Content Page
Go Back to the old (3-week) Oscillations Course Content Page