GOALS

Physics

• Use the LRC circuit as a sine wave driven oscillator to study the "driven harmonic oscillator."
• Relate the stored energy, phase shift, amplitude of response vs. frequency and Q of the circuit to each other.

Technique

• Practice using the oscilloscope and signal generator (sine wave) to create resonance.
• Keep track of various phase relationships between sinusoidal functions by using dual beams and/or external triggering of the oscilloscope and do function fitting.
• Graph circuit response vs. frequency.

Errors

Same requirements as Exp. 2, plus the need to use (₁ - ₂)/₀ and calculate its error correctly.

Question (Work out in lab book before coming to class)

Consider Fig. 2. Is this something you "see" on the oscilloscope? If not, how many measurements should you make in order to be able to graph the function I₀()?

References

• Halliday and Resnick, 3rd Ed. 14-9, 35-3, 35-6
• University Physics, H.D. Young, 8th Ed., 25-4, Ch. 31, 32.